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1.
Radiol Med ; 2024 Jul 06.
Article in English | MEDLINE | ID: mdl-38971947

ABSTRACT

The sudden death of a young or high-level athlete or adolescent during recreational sports is one of the events with the greatest impact on public opinion in modern society. Sudden cardiac death (SCD) is the principal medical cause of death in athletes and can be the first and last clinical presentation of underlying disease. To prevent such episodes, pre-participation screening has been introduced in many countries to guarantee cardiovascular safety during sports and has become a common target among medical sports/governing organizations. Different cardiac conditions may cause SCD, with incidence depending on definition, evaluation methods, and studied populations, and a prevalence and etiology changing according to the age of athletes, with CAD most frequent in master athletes, while coronary anomalies and non-ischemic causes prevalent in young. To detect silent underlying causes early would be of considerable clinical value. This review summarizes the pre-participation screening in athletes, the specialist agonistic suitability visit performed in Italy, the anatomical characteristics of malignant coronary anomalies, and finally, the role of coronary CT angiography in such arena. In particular, the anatomical conditions suggesting potential disqualification from sport, the post-treatment follow-up to reintegrate young athletes, the diagnostic workflow to rule-out CAD in master athletes, and their clinical management are analyzed.

2.
Eur Radiol ; 32(7): 4352-4360, 2022 Jul.
Article in English | MEDLINE | ID: mdl-35230520

ABSTRACT

OBJECTIVES: To assess clinical and cardiac magnetic resonance (CMR) imaging features of patients with peri-myocarditis following Coronavirus Disease 2019 (COVID-19) vaccination. METHODS: We retrospectively collected a case series of 27 patients who underwent CMR in the clinical suspect of heart inflammation following COVID-19 vaccination, from 16 large tertiary centers. Our patient's cohort was relatively young (36.6 ± 16.8 years), predominately included males (n = 25/27) with few comorbidities and covered a catchment area of approximately 8 million vaccinated patients. RESULTS: CMR revealed typical mid-subepicardial non-ischemic late gadolinium enhancement (LGE) in 23 cases and matched positively with CMR T2 criteria of myocarditis. In 7 cases, typical hallmarks of acute pericarditis were present. Short-term follow-up (median = 20 days) from presentation was uneventful for 25/27 patients and unavailable in two cases. CONCLUSIONS: While establishing a causal relationship between peri-myocardial inflammation and vaccine administration can be challenging, our clinical experience suggests that CMR should be performed for diagnosis confirmation and to drive clinical decision-making and follow-up. KEY POINTS: • Acute onset of dyspnea, palpitations, or acute and persisting chest pain after COVID-19 vaccination should raise the suspicion of possible myocarditis or pericarditis, and patients should seek immediate medical attention and treatment to help recovery and avoid complications. • In case of elevated troponin levels and/or relevant ECG changes, cardiac magnetic resonance should be considered as the best non-invasive diagnostic option to confirm the diagnosis of myocarditis or pericarditis and to drive clinical decision-making and follow-up.


Subject(s)
COVID-19 , Myocarditis , Pericarditis , Arrhythmias, Cardiac , COVID-19 Vaccines/adverse effects , Contrast Media/pharmacology , Gadolinium/pharmacology , Humans , Inflammation , Magnetic Resonance Imaging , Male , Myocarditis/diagnostic imaging , Myocarditis/etiology , Pericarditis/diagnostic imaging , Pericarditis/etiology , Retrospective Studies , Vaccination
3.
Am J Perinatol ; 29(14): 1514-1518, 2022 10.
Article in English | MEDLINE | ID: mdl-34996119

ABSTRACT

OBJECTIVE: The study aimed to report a novel coronavirus disease 2019 (COVID-19)-associated multisystem inflammatory syndrome in children (MIS-C) in a neonate found to have an atypical diffuse thickening in coronary artery walls whose diagnosis required a multi-imaging approach. STUDY DESIGN: A neonate presented at birth with multiple organ involvement and coronary artery anomalies. A diagnosis of MIS-C associated with COVID-19 was supported by maternal severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) infection during pregnancy, and by the presence of both immunoglobulin (Ig)-G against SARS-CoV-2 and spike-specific memory B-cells response in the neonatal blood. Other plausible causes of the multiple organ involvement were excluded. RESULT: At admission, a severe coronary artery dilatation was identified on echocardiography, supporting the diagnosis of the MIS-C Kawasaki-like disease; however, coronary artery internal diameters were found to be normal using cardiac computed tomography angiography. At discharge, comparing the two imaging techniques each other, the correct diagnosis resulted to be an abnormal thickening in coronary arterial walls. These findings suggest that the inflammatory process affecting the coronary arterial wall in MIS-C could result not only in typical coronary artery lesions such as dilatation of the lumen or aneurysms development but also in abnormal thickening of the coronary artery wall. CONCLUSION: Our case provides an alert for pediatric cardiologists about the complexity to assess coronary artery involvement in MIS-C and raises the question that whether an abnormal vascular remodeling, with normal inner diameters, is to be considered like coronary artery dilatation for risk stratification. KEY POINTS: · COVID-19 associated MIS-C can present in neonates with multiple organ involvement.. · Coronary artery assessment in neonatal MIS-C could be complex, and a multi-imaging approach could be required.. · Beside the typical coronary artery lesions, such as dilatation of the lumen or aneurysms, also abnormal thickening of the coronary artery wall can occur..


Subject(s)
COVID-19 , COVID-19/complications , Child , Coronary Vessels/diagnostic imaging , Hospitalization , Humans , Immunoglobulin G , Infant, Newborn , SARS-CoV-2 , Systemic Inflammatory Response Syndrome
4.
Radiol Med ; 127(3): 277-293, 2022 Mar.
Article in English | MEDLINE | ID: mdl-35129758

ABSTRACT

Non-invasive cardiovascular imaging owns a pivotal role in the preoperative assessment of patient candidates for transcatheter aortic valve implantation (TAVI), providing a wide range of crucial information to select the patients who will benefit the most and have the procedure done safely. This document has been developed by a joined group of experts of the Italian Society of Cardiology and the Italian Society of Medical and Interventional Radiology and aims to produce an updated consensus statement about the pre-procedural imaging assessment in candidate patients for TAVI intervention. The writing committee consisted of members and experts of both societies who worked jointly to develop a more integrated approach in the field of cardiac and vascular radiology. Part 2 of the document will cover CT and MR angiography, standard medical reporting, and future perspectives.


Subject(s)
Aortic Valve Stenosis , Cardiology , Transcatheter Aortic Valve Replacement , Angiography , Aortic Valve/diagnostic imaging , Aortic Valve/surgery , Aortic Valve Stenosis/diagnostic imaging , Aortic Valve Stenosis/surgery , Humans , Tomography, X-Ray Computed/methods , Transcatheter Aortic Valve Replacement/methods
5.
Radiol Med ; 126(3): 356-364, 2021 Mar.
Article in English | MEDLINE | ID: mdl-32833196

ABSTRACT

The progressive increase in numbers of noninvasive cardiac imaging examinations broadens the spectrum of knowledge radiologists are expected to acquire in the management of drugs during CT coronary angiography (CTCA) and cardiac MR (CMR) to improve image quality for optimal visualization and assessment of the coronary arteries and adequate MR functional analysis. Aim of this review is to provide an overview on different class of drugs (nitrate, beta-blockers, ivabradine, anxiolytic, adenosine, dobutamine, atropine, dipyridamole and regadenoson) that can be used in CTCA and CMR, illustrating their main indications, contraindications, efficacy, mechanism of action, metabolism, safety, side effects or complications, and providing advices in their use.


Subject(s)
Cardiac Imaging Techniques , Computed Tomography Angiography/methods , Coronary Angiography/methods , Coronary Vessels/diagnostic imaging , Heart/diagnostic imaging , Magnetic Resonance Imaging/methods , Adenosine/administration & dosage , Adrenergic beta-Antagonists/administration & dosage , Adrenergic beta-Antagonists/adverse effects , Adrenergic beta-Antagonists/pharmacokinetics , Anti-Anxiety Agents/administration & dosage , Atropine/administration & dosage , Calcium Channel Blockers/administration & dosage , Calcium Channel Blockers/adverse effects , Contraindications, Drug , Dipyridamole/administration & dosage , Dobutamine/administration & dosage , Humans , Ivabradine/administration & dosage , Ivabradine/adverse effects , Nitroglycerin/administration & dosage , Purines/administration & dosage , Purines/adverse effects , Pyrazoles/administration & dosage , Pyrazoles/adverse effects , Vasodilator Agents/administration & dosage
6.
Eur Radiol ; 30(11): 5834-5840, 2020 Nov.
Article in English | MEDLINE | ID: mdl-32468107

ABSTRACT

PURPOSE: We prospectively investigate the feasibility of a patient specific automated tube voltage selection (ATVS)-based coronary artery calcium scoring (CACS) protocol, using a kV-independent reconstruction algorithm, to achieve significant dose reductions while maintaining the overall cardiac risk classification. METHODS: Forty-three patients (mean age, 61.8 ± 9.0 years; 40% male) underwent a clinically indicated CACS scan at 120kVp, as well as an additional CACS acquisition using an individualized tube voltage between 70 and 130kVp based on the ATVS selection (CARE-kV). Datasets of the additional CACS scans were reconstructed using a kV-independent algorithm that allows for calcium scoring without changing the weighting threshold of 130HU, regardless of the tube voltage chosen for image acquisition. Agatston scores and radiation dose derived from the different ATVS-based CACS studies were compared to the standard acquisition at 120kVp. RESULTS: Thirteen patients displayed a score of 0 and were correctly identified with the ATVS protocol. Agatston scores derived from the standard 120kVp (median, 33.4; IQR, 0-289.7) and the patient-tailored kV-independent protocol (median, 47.5; IQR, 0-287.5) showed no significant differences (p = 0.094). The intra-class correlation for Agatston scores derived from the two different protocols was excellent (ICC = 0.99). The mean dose-length-product was 29.8 ± 11.9 mGy × cm using the ATVS protocol and 31.7 ± 11.4 mGy × cm using the standard 120kVp protocol (p < 0.001). Additionally, 95% of patients were classified into the same risk category (0, 1-10, 11-100, 101-400, or > 400) using the patient-tailored protocol. CONCLUSIONS: ATVS-based CACS, using a kV-independent algorithm, allows for high accuracy compared to the standard 120kVp scanning, while significantly reducing radiation dose parameters. KEY POINTS: • ATVS allows for CT scanning with reduced radiation dose values. • KV-independent CACS is feasible at any tube voltage between 70 and 130 kVp. • ATVS applied to kV-independent CACS can significantly reduce the radiation dose.


Subject(s)
Algorithms , Calcium/metabolism , Coronary Angiography/methods , Coronary Artery Disease/diagnosis , Coronary Vessels/diagnostic imaging , Radiographic Image Interpretation, Computer-Assisted/methods , Tomography, X-Ray Computed/methods , Coronary Artery Disease/metabolism , Coronary Vessels/metabolism , Female , Humans , Male , Middle Aged
7.
Radiol Med ; 125(11): 1102-1113, 2020 Nov.
Article in English | MEDLINE | ID: mdl-32964325

ABSTRACT

The world of cardiac imaging is proposing to physicians an ever-increasing spectrum of options and tools with the disadvantages of patients presently submitted to multiple, sequential, time-consuming, and costly diagnostic procedures and tests, sometimes with contradicting results. In the last two decades, the CCTA has evolved into a valuable diagnostic test in today's patient care, changing the official existing guidelines and clinical practice with a pivotal role to exclude significant CAD, in the referral of patients to the Cath-Lab, in the follow-up after coronary revascularization, and finally in the cardiovascular risk stratification.


Subject(s)
Computed Tomography Angiography/methods , Coronary Angiography/methods , Coronary Artery Disease/diagnostic imaging , Angina, Stable/diagnostic imaging , Emergency Service, Hospital , Humans , Risk Assessment
8.
Eur Radiol ; 26(3): 788-96, 2016 Mar.
Article in English | MEDLINE | ID: mdl-26139314

ABSTRACT

OBJECTIVES: To compare the CACS and CAD severity assessed by MDCT in neuropathic type-2 diabetic patients with and without Charcot-neuroarthropathy (CN). METHODS: Thirty-four CN asymptomatic-patients and 36 asymptomatic-patients with diabetic-neuropathy (DN) without CN underwent MDCT to assess CACS and severity of CAD. Patients were classified as positive for significant CAD in presence of at least one stenosis >50 % on MDCT-coronary-angiography (MDCT-CA). Groups were matched for age, sex and traditional CAD risk-factors. The coronary-angiography (CA) was performed in all patients with at least a significant stenosis detected by MDCT-CA, both as reference and eventually as treatment. RESULTS: CN patients showed higher rates of significant CAD in comparison with DN subjects [p < 0.001], while non-significant differences were observed in CACS (p = 0.980). No significant differences were also observed in CACS distribution in all subjects for stenosis ≥/<50 % (p = 0.814), as well as in both groups (p = 0.661 and 0.559, respectively). The MDCT-CA showed an overall diagnostic-accuracy for significant CAD of 87%. CONCLUSIONS: These preliminary data suggest that CN-patients have a higher prevalence of severe CAD in comparison with DN-patients, while coronary plaques do not exhibit an increased amount of calcium. MDCT may be helpful to assess the CV risk in such asymptomatic type-2-diabetic patients with autonomic-neuropathy. KEY POINTS: Type 2-diabetic-patients with CN result having more severe coronary artery plaque-burden. MDCT-CA may stratify the CV risk in type 2-diabetic-patients with CN. Adequate diagnostic is mandatory for optimal management of type 2-diabetic-patients with CN.


Subject(s)
Amyotrophic Lateral Sclerosis/complications , Coronary Artery Disease/complications , Coronary Artery Disease/diagnostic imaging , Diabetes Mellitus, Type 2/complications , Diabetic Neuropathies/complications , Multidetector Computed Tomography/methods , Amyotrophic Lateral Sclerosis/diagnostic imaging , Arthropathy, Neurogenic/complications , Arthropathy, Neurogenic/diagnostic imaging , Coronary Angiography , Diabetes Mellitus, Type 2/diagnostic imaging , Diabetic Neuropathies/diagnostic imaging , Female , Humans , Male , Middle Aged , Prospective Studies , Risk Factors , Severity of Illness Index
9.
Acta Radiol ; 57(5): 547-56, 2016 May.
Article in English | MEDLINE | ID: mdl-26185265

ABSTRACT

BACKGROUND: Multidetector computed tomography angiography (MDCTA) and magnetic resonance angiography (MRA) are accurate techniques for selecting patients with peripheral arterial disease for surgical and endovascular treatment. No studies in the literature have directly compared MDCTA and MRA to establish which one should be employed, in patients suitable for both techniques, before endovascular treatment. PURPOSE: To compare diagnostic performance of MDCTA vs MRA before endovascular intervention. MATERIAL AND METHODS: We prospectively compared MDCTA (64 slices scanner) and MRA (1.5 T scanner; 3D gadolinium-enhanced bolus-chase acquisition plus time resolved acquisition on calves) to stratify 35 patients according to the TASC II score and a runoff severity score. We also evaluated the accuracy of both techniques in each arterial segment. Selective angiography performed during the treatment was the standard of reference. RESULTS: MDCTA and MRA accurately classify disease in the aorto-iliac (accuracy 0.92 for MDCTA and MRA) and femoro-popliteal (MDCTA 0.94, MRA 0.90) segments. MDCTA was more accurate in stratifying disease in the infrapopliteal segments (0.96 vs. 0.9) and in assessing the impairment of runoff arteries (0.92 vs. 0.85) at per-segment analysis. MDCTA showed a higher confidence and a shorter examination time. CONCLUSION: Our results suggest that MDCTA can be considered as a first-line investigation in patients being candidates for endovascular procedures when clinical history or duplex sonographic evaluation are indicative of severe impairment of the infrapopliteal segment.


Subject(s)
Magnetic Resonance Angiography/methods , Multidetector Computed Tomography/methods , Peripheral Arterial Disease/diagnosis , Aged , Aged, 80 and over , Contrast Media , Endovascular Procedures , Female , Humans , Leg/blood supply , Male , Middle Aged , Peripheral Arterial Disease/diagnostic imaging , Peripheral Arterial Disease/therapy , Prospective Studies , Sensitivity and Specificity
10.
Radiol Med ; 120(2): 190-205, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25030969

ABSTRACT

To date, several clinical and multicentre studies have demonstrated the accuracy of perfusion cardiac magnetic resonance to detect ischaemia in comparison with quantitative coronary angiography, other noninvasive diagnostic techniques (single photon emission computed tomography; positron-emission tomography), and invasive haemodynamic measurements (fractional flow reserve). Moreover, the favourable safety profile and increasing availability contribute to make perfusion cardiac magnetic resonance one of the modalities of choice for the detection of myocardial ischaemia. Recently, the first evidence of the prognostic value of perfusion cardiac magnetic resonance results has also become available. This review summarises the technical and interpretation key points of perfusion cardiac magnetic resonance scan, the clinical indications, the most recent available literature about its diagnostic performance and prognostic value, and how perfusion cardiac magnetic resonance compares with other noninvasive techniques.


Subject(s)
Coronary Artery Disease/diagnosis , Magnetic Resonance Imaging , Myocardial Perfusion Imaging , Coronary Artery Disease/physiopathology , Coronary Circulation , Decision Trees , Gadolinium , Humans , Reproducibility of Results , Tomography, Emission-Computed, Single-Photon
11.
Radiol Med ; 120(10): 919-29, 2015 Oct.
Article in English | MEDLINE | ID: mdl-25700633

ABSTRACT

PURPOSE: Cardiac CT (CCT) is an imaging modality that is becoming a standard in clinical cardiology. We evaluated indications, safety, and impact on patient management of routine CCT in a multicenter national registry. MATERIALS AND METHODS: During a period of 6 months, 47 centers in Italy enrolled 3,455 patients. RESULTS: CCT was performed mainly with 64-slice CT scanners (73.02 %). Contrast agents were administrated in 3,185 patients (92.5 %). Mean DLP changes with type of scanner and was lower in >64 row detector scanner. The most frequent indication for CCT was suspected CAD (44.8 %), followed by calcium scoring (9.6 %), post-angioplasty/stenting (8.3 %), post-CABGs (7.5 %), study of cardiac anatomy (4.22 %) and assessment in patients with known CAD (4.1 %) and acute chest pain (1.99 %). Most of the CCTs were performed in outpatient settings (2,549; 74 %) and a minority in inpatient settings (719, 20.8 %). Adverse clinical events (mild-moderate) occurred in 26 examinations (0.75 %). None of them was severe. In 45.3 % of the cases CCT findings impacted patient management. CONCLUSION: CCT is performed with different workloads in participating centers. It is a safe procedure and its results have a strong impact on patient management.


Subject(s)
Cardiac Imaging Techniques , Heart Diseases/diagnostic imaging , Registries , Tomography, X-Ray Computed , Adolescent , Adult , Aged , Aged, 80 and over , Cardiac Imaging Techniques/methods , Child , Child, Preschool , Female , Humans , Infant , Italy , Male , Middle Aged , Tomography, X-Ray Computed/methods , Young Adult
12.
EuroIntervention ; 20(5): e322-e328, 2024 Mar 04.
Article in English | MEDLINE | ID: mdl-38436365

ABSTRACT

The optimal antiplatelet strategy after coronary artery bypass graft (CABG) surgery in patients with chronic coronary syndromes (CCS) is unclear. Adding the P2Y12 inhibitor, ticagrelor, to low-dose aspirin for 1 year is associated with a reduction in graft failure, particularly saphenous vein grafts, at the expense of an increased risk of clinically important bleeding. As the risk of thrombotic graft failure and ischaemic events is highest early after CABG surgery, a better risk-to-benefit profile may be attained with short-term dual antiplatelet therapy followed by single antiplatelet therapy. The One Month Dual Antiplatelet Therapy With Ticagrelor in Coronary Artery Bypass Graft Patients (ODIN) trial is a prospective, randomised, double-blind, placebo-controlled, international, multicentre study of 700 subjects that will evaluate the effect of short-term dual antiplatelet therapy with ticagrelor plus low-dose aspirin after CABG in patients with CCS. Patients will be randomised 1:1 to ticagrelor 90 mg twice daily or matching placebo, in addition to aspirin 75-150 mg once daily for 1 month; after the first month, antiplatelet therapy will be continued with aspirin alone. The primary endpoint is a hierarchical composite of all-cause death, stroke, myocardial infarction, revascularisation and graft failure at 1 year. The key secondary endpoint is a hierarchical composite of all-cause death, stroke, myocardial infarction, Bleeding Academic Research Consortium (BARC) type 3 bleeding, revascularisation and graft failure at 1 year (net clinical benefit). ODIN will report whether the addition of ticagrelor to low-dose aspirin for 1 month after CABG reduces ischaemic events and provides a net clinical benefit in patients with CCS. (ClinicalTrials.gov: NCT05997693).


Subject(s)
Myocardial Infarction , Stroke , Humans , Ticagrelor/therapeutic use , Aspirin/therapeutic use , Platelet Aggregation Inhibitors/adverse effects , Prospective Studies , Coronary Artery Bypass/adverse effects , Stroke/etiology , Stroke/prevention & control
13.
Eur Radiol ; 23(5): 1306-15, 2013 May.
Article in English | MEDLINE | ID: mdl-23207869

ABSTRACT

OBJECTIVES: To evaluate image quality (IQ) of low-radiation-dose paediatric cardiovascular CT angiography (CTA), comparing iterative reconstruction in image space (IRIS) and sinogram-affirmed iterative reconstruction (SAFIRE) with filtered back-projection (FBP) and estimate the potential for further dose reductions. METHODS: Forty neonates and children underwent low radiation CTA with or without ECG synchronisation. Data were reconstructed with FBP, IRIS and SAFIRE. For ECG-synchronised studies, half-dose image acquisitions were simulated. Signal noise was measured and IQ graded. Effective dose (ED) was estimated. RESULTS: Mean absolute and relative image noise with IRIS and full-dose SAFIRE was lower than with FBP (P < 0.001), while SNR and CNR were higher (P < 0.001). Image noise was also lower and SNR and CNR higher in half-dose SAFIRE studies compared with full-and half-dose FBP studies (P < 0.001). IQ scores were higher for IRIS, full-dose SAFIRE and half-dose SAFIRE than for full-dose FBP and higher for half-dose SAFIRE than for half-dose FBP (P < 0.05). Median weight-specific ED was 0.3 mSv without and 1.36 mSv with ECG synchronisation. The estimated ED of half-dose SAFIRE studies was 0.68 mSv. CONCLUSIONS: IR improves image noise, SNR, CNR and subjective IQ compared with FBP in low-radiation-dose paediatric CTA and allows further dose reductions without compromising diagnostic IQ. KEY POINTS: • Iterative reconstruction techniques significantly improve non-invasive cardiovascular CT in children. • Using half traditional radiation dose image quality is higher with iterative reconstruction. • Iterative reconstruction techniques may allow further radiation reductions in paediatric cardiovascular CT.


Subject(s)
Cardiovascular Diseases/congenital , Cardiovascular Diseases/diagnostic imaging , Coronary Angiography/methods , Radiation Dosage , Radiation Protection/methods , Radiographic Image Interpretation, Computer-Assisted/methods , Tomography, X-Ray Computed/methods , Adolescent , Algorithms , Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Male , Reproducibility of Results , Sensitivity and Specificity
14.
J Comput Assist Tomogr ; 37(3): 419-25, 2013.
Article in English | MEDLINE | ID: mdl-23674015

ABSTRACT

OBJECTIVE: To assess the accuracy of a semiautomated 3-dimensional (3D) computed tomographic angiography software in the evaluation of lower limb stenoses compared to reader evaluation, using digital subtraction angiography (DSA) as standard of reference. MATERIALS AND METHODS: Forty patients with peripheral vascular occlusive disease underwent both DSA and computed tomographic angiography. The vascular tree was divided into 6 segments from distal aorta to popliteal artery. Each district was evaluated for significant stenosis by one experienced vascular radiologist (on axial as well as 3D images) and by a semiautomated 3D software analysis, independently. Evaluation of the vessel evaluation was then repeated by a poorly experienced radiologist twice, first without 3D software analysis and then supported by 3D software analysis. RESULTS: Both experienced radiologist and automated evaluations obtained high statistical results when compared to DSA. The analysis by poorly experienced radiologist obtained lower statistical results, which significantly improved when supported by 3D software analysis. CONCLUSIONS: Three-dimensional analysis software should be feasible to identify significant vascular stenoses and may help a poorly experienced radiologist to significantly improve diagnostic accuracy.


Subject(s)
Angiography/methods , Arterial Occlusive Diseases/diagnostic imaging , Lower Extremity/blood supply , Lower Extremity/diagnostic imaging , Peripheral Vascular Diseases/diagnostic imaging , Tomography, X-Ray Computed/methods , Adult , Aged , Aged, 80 and over , Angiography, Digital Subtraction , Contrast Media , Female , Humans , Imaging, Three-Dimensional , Iopamidol/analogs & derivatives , Male , Middle Aged , Predictive Value of Tests , Radiographic Image Interpretation, Computer-Assisted , Sensitivity and Specificity , Software
15.
Acta Radiol ; 54(3): 249-58, 2013 Apr 01.
Article in English | MEDLINE | ID: mdl-23446750

ABSTRACT

Significant literature on MDCT coronary angiography (MDCT-CA) has emerged in the last decade concerning patient's selection, technical aspects of different generations of CT equipment, ECG gating, contrast material and beta-blockade administration, acquisition parameters, and radiation dose. However, the literature regarding postprocessing, reading, and reporting is not so extensive. This review highlights the main elements of MDCT-CA data analysis, thereby allowing the radiologist to take full advantage of this technology and enable a structured report to be generated, promoting best practice with high-quality results.


Subject(s)
Coronary Angiography/methods , Coronary Disease/diagnostic imaging , Radiographic Image Interpretation, Computer-Assisted/methods , Tomography, X-Ray Computed/methods , Cardiac-Gated Imaging Techniques , Humans , Radiology Information Systems , Software
16.
Tomography ; 9(3): 981-994, 2023 05 11.
Article in English | MEDLINE | ID: mdl-37218940

ABSTRACT

Elevated inflammatory markers are associated with severe coronavirus disease 2019 (COVID-19), and some patients benefit from Interleukin (IL)-6 pathway inhibitors. Different chest computed tomography (CT) scoring systems have shown a prognostic value in COVID-19, but not specifically in anti-IL-6-treated patients at high risk of respiratory failure. We aimed to explore the relationship between baseline CT findings and inflammatory conditions and to evaluate the prognostic value of chest CT scores and laboratory findings in COVID-19 patients specifically treated with anti-IL-6. Baseline CT lung involvement was assessed in 51 hospitalized COVID-19 patients naive to glucocorticoids and other immunosuppressants using four CT scoring systems. CT data were correlated with systemic inflammation and 30-day prognosis after anti-IL-6 treatment. All the considered CT scores showed a negative correlation with pulmonary function and a positive one with C-reactive protein (CRP), IL-6, IL-8, and Tumor Necrosis Factor α (TNF-α) serum levels. All the performed scores were prognostic factors, but the disease extension assessed by the six-lung-zone CT score (S24) was the only independently associated with intensive care unit (ICU) admission (p = 0.04). In conclusion, CT involvement correlates with laboratory inflammation markers and is an independent prognostic factor in COVID-19 patients representing a further tool to implement prognostic stratification in hospitalized patients.


Subject(s)
COVID-19 , Lung , Receptors, Interleukin-6 , Humans , COVID-19/diagnostic imaging , Cytokines , Inflammation , Lung/diagnostic imaging , Lung/pathology , Prognosis , Receptors, Interleukin-6/antagonists & inhibitors , Retrospective Studies , Tomography, X-Ray Computed , COVID-19 Drug Treatment
17.
Radiology ; 263(1): 287-98, 2012 Apr.
Article in English | MEDLINE | ID: mdl-22332067

ABSTRACT

PURPOSE: To investigate the ionizing radiation dose, image quality, and diagnostic performance of computed tomographic (CT) angiography of the peripheral arteries with three different CT angiographic acquisition protocols, with use of pretreatment digital subtraction angiography (DSA) as the reference standard. MATERIALS AND METHODS: The study was approved by the institutional review board and performed in agreement with the 1990 Declaration of Helsinki and subsequent amendments. Each patient provided informed consent before undergoing CT. The authors performed a prospective, single-center, randomized comparison of three different x-ray exposure CT acquisition protocols in 60 randomized patients with peripheral arterial occlusive disease referred for 64-section multidetector CT angiography of the lower limb (0.625-mm collimation, intravenous administration of 100 mL of iomeprol [400 mg iodine per milliliter] at 4 mL/sec). The acquisition protocols were performed with (a) 120 kVp and a noise index of 26 (moderate noise reduction [MNR]), referred to as the 120-kVp MNR group; (b) 80 kVp and a noise index of 26, referred to as the 80-kVp MNR group; and (c) 80 kVp and a noise index of 30 (high noise reduction [HNR]), referred to as the 80-kVp HNR group. Axial and three-dimensional (3D) images were qualitatively and quantitatively compared by using the overall F test and pairwise comparisons. The X(2) test was used to compare the three protocols in terms of diagnostic performance in patients who also underwent DSA before an interventional procedure. RESULTS: Significantly higher attenuation values were obtained in the vessels with the 80-kVp MNR and 80-kVp HNR acquisition protocols. No significant differences were noted in terms of image quality with either axial source images or 3D reconstructions. Likewise, no significant differences were found among the three protocols in terms of noise throughout the peripheral vasculature. Finally, no significant differences were found among the three groups with regard to diagnostic performance. Overall dose reductions of 48% and 61% were obtained for the 80-kVp MNR and 80-kVp HNR protocols, respectively. CONCLUSION: Substantial reductions of radiation dose are achievable at multidetector CT angiography of the peripheral arteries without compromising image quality and diagnostic performance if acquisition protocols are modified appropriately and used in conjunction with a contrast material containing a high concentration of iodine.


Subject(s)
Angiography, Digital Subtraction/methods , Aortic Diseases/diagnostic imaging , Arterial Occlusive Diseases/diagnostic imaging , Peripheral Vascular Diseases/diagnostic imaging , Tomography, X-Ray Computed/methods , Adult , Aged , Aged, 80 and over , Chi-Square Distribution , Contrast Media , Female , Humans , Iopamidol/analogs & derivatives , Male , Middle Aged , Prospective Studies , Radiation Dosage , Radiographic Image Interpretation, Computer-Assisted
18.
J Pediatr Hematol Oncol ; 34(3): 236-8, 2012 Apr.
Article in English | MEDLINE | ID: mdl-22395217

ABSTRACT

Positron emission tomography (PET) is widely used in the diagnostic evaluation and staging of different malignant tumors. The role of PET/computed tomographic scan in detecting distant metastases in the workup of Ewing sarcoma in children or young adults is less well defined. We report a case of a boy affected by a metastatic Ewing sarcoma with cardiac asymptomatic metastasis detected by F-FDG PET/computed tomography.


Subject(s)
Bone Neoplasms/pathology , Fluorodeoxyglucose F18 , Heart Neoplasms/secondary , Multimodal Imaging , Positron-Emission Tomography , Radiopharmaceuticals , Sarcoma, Ewing/pathology , Tomography, X-Ray Computed , Adolescent , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Bone Neoplasms/drug therapy , Echocardiography , Heart Neoplasms/drug therapy , Humans , Magnetic Resonance Imaging , Male , Prognosis , Radiography, Thoracic , Sarcoma, Ewing/drug therapy
19.
Rheumatol Int ; 32(3): 809-14, 2012 Mar.
Article in English | MEDLINE | ID: mdl-21327430

ABSTRACT

A 7-year-old child was first admitted for persistent fever of 15-day duration and suspected meningitis. Kawasaki syndrome was lately diagnosed upon the recognition of an extensive diffuse coronary artery damage characterized by medium-sized aneurysms of the epicardial vessels. An eccentric thrombus along the inferior wall of the left anterior descending artery suspected at transthoracic echocardiography was confirmed by coronary computed tomography angiography scan, without significant segmental stenosis. Strict cardiac surveillance and anticoagulant therapy were maintained, and no ischemic complications occurred at a short-term follow-up. This report emphasizes that thrombosis can be observed even in medium-sized aneurysms when the diagnosis of Kawasaki syndrome is delayed.


Subject(s)
Coronary Aneurysm/diagnosis , Mucocutaneous Lymph Node Syndrome/diagnosis , Thrombosis/diagnosis , Anticoagulants/therapeutic use , Child , Coronary Aneurysm/drug therapy , Coronary Angiography , Echocardiography , Humans , Immunoglobulins, Intravenous/administration & dosage , Mucocutaneous Lymph Node Syndrome/drug therapy , Thrombosis/drug therapy , Tomography, X-Ray Computed , Treatment Outcome
20.
Eur J Ophthalmol ; 32(6): 3574-3583, 2022 Nov.
Article in English | MEDLINE | ID: mdl-35174719

ABSTRACT

BACKGROUND: Endothelium damage is a crucial element in the pathogenesis of SARS-Cov-2 infection. Most casualties in critical COVID-19 cases are due to ARDS, diffuse coagulopathy and cytokine storm. ARDS itself is a consequence of pulmonary endothelial cells damage. Damage to retinal capillary microcirculation in post-infective period has been investigated through Optical Coherence Tomography Angiography (OCTA). The aim of the present study is to find a correlation between signs of retinal vascular damage and pulmonary impairment. METHODS: Patients admitted to hospital and subsequently recovered from COVID-19 infection were summoned 1 month later to undergo coherence tomography (CT) scan and OCTA examination. RESULTS: The study population included 87 COVID-19 patients with a mean age of 54.28 ± 14.44 years. Oxygen therapy, non-invasive and invasive mechanical ventilation were necessary in 33, 11 and 4 patients respectively to provide respiratory support during the acute course of the disease. Pulmonary involvement interested 54 patients (62.1%). Peripheral (27.6%) or diffuse (29.9%) involvement and ground glass (GG) opacities (47.1%) represented the prevalent radiological finding. A reduced RCPI FI was independently correlated with the presence of reticulation pattern in CT scan (p = .019). Also, RNFL and GCC were thinner in patients who displayed reticulation pattern (respectively p = .025 and p = .015). CONCLUSIONS: A reduction in RPCP-FI and RNFL and GCC thickness were independently correlated to the presence of CT reticulation pattern. This association can reflect cytokine induced remodeling in both organs as a consequence of systemic endothelial damage and inflammation.


Subject(s)
COVID-19 , Respiratory Distress Syndrome , Adult , Aged , COVID-19/complications , Cytokines , Endothelial Cells , Humans , Middle Aged , Oxygen , Retinal Vessels , SARS-CoV-2 , Tomography, Optical Coherence/methods
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