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1.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 50(4): 483-488, 2019 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-31642223

RESUMO

OBJECTIVE: To study the application value of motion-correction phase sensitive inversion recovery (MOCO-PSIR) to evaluate myocardial fibrosis in the patients with heart failure caused by dilated cardiomyopathy (DCM). METHODS: A prospective study included 60 patients who underwent cardiac MRI enhanced scan from June 2017 to November 2018, including 38 patients who were clinically diagnosed with DCM and 22 patients in the normal control group. All patients were scanned with three late gadolinium enhancement (LGE) sequences: segmented-PSIR, single-shot-PSIR, MOCO-PSIR at the same time. The subjective quality score (level 4) and image signal-to-noise ratio (objective evaluation) of normal and abnormal myocardium were analyzed and compared in three scanning technique groups. The detection rate of myocardial fibrosis and image acquisition time of the three scanning techniques were recorded. RESULTS: In the normal control group (sinus rhythm), subjective score showed no statistical significance. Subjective scoring results in the patients with DCM: MOCO-PSIR>single-shot-PSIR> segmented-PSIR (P < 0.05). SNR results PSIR-LGE images in DCM patients as well as control group: segmented-PSIR>MOCO-PSIR> single-shot-PSIR (P < 0.05). In the whole 646 segments analysis of DCM patients, the ratio unable to judge in segmented-PSIR was up to 25.5%, but only 1.4% in MOCO-PSIR. Significant difference was found in the three groups. While in the 374 segments of control group, no statistical difference was found in comparison of incapability to judge. Acquisition time covered left ventricular: (5.6±1.7) min in segmented-PSIR, (0.4±0.2) min in single-shot-PSIR and (4.5±1.1) min in MOCO-PSIR. Pairwise comparison of acquisition time among three scanning techniques was statistically significant (P < 0.001). CONCLUSION: MOCO-PSIR-LGE has better clinical significance than conventional delayed enhanced scan sequences in the diagnosis of myocardial fibrosis in the patients with heart failure caused by dilated cardiomyopathy.


Assuntos
Cardiomiopatia Dilatada/diagnóstico por imagem , Insuficiência Cardíaca/diagnóstico por imagem , Imagem por Ressonância Magnética , Miocárdio/patologia , Estudos de Casos e Controles , Meios de Contraste , Fibrose , Gadolínio , Humanos , Aumento da Imagem , Estudos Prospectivos
2.
Sci Rep ; 9(1): 8657, 2019 Jun 17.
Artigo em Inglês | MEDLINE | ID: mdl-31209274

RESUMO

Pulmonary mucosa-associated lymphoid tissue (MALT) lymphoma is the most common primary pulmonary lymphoma. There are limited studies on imaging features of pulmonary MALT lymphoma. We present the computed tomography (CT) manifestations of pulmonary MALT lymphoma and the correlation between CT manifestations and clinical characteristics. Patients (n = 53) with histologically confirmed pulmonary MALT lymphoma who underwent chest CT scanning were retrospectively analyzed. Evaluated findings included distribution of pulmonary lesions, morphological pattern of appearance, contrast enhancement features, size, presence of thoracic lymphadenopathy, and secondary associated features. Pulmonary MALT lymphoma was observed in multiple (79%) and bilateral (66%) disease with random distribution (≥70%) of pulmonary lesions. The most frequent morphological pattern was consolidation (n = 33, 62%), followed by nodule (n = 23, 43%) and mass (n = 11, 21%). Common associated features were air bronchograms and bronchiectasis, especially cystic bronchiectasis and angiogram sign. Asymptomatic patients had less consolidation and bronchiectasis than did symptomatic patients. Cystic bronchiectasis was only observed in the symptomatic group. In conclusion, pulmonary MALT lymphoma manifests as diverse patterns on CT scans. Consolidation combined with cystic bronchiectasis was a characteristic late sign, which may assist in differential diagnosis. High-resolution CT images and multiplanar reconstruction techniques are helpful for accurately determining imaging manifestations.

3.
Oncol Lett ; 7(6): 1975-1977, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24932272

RESUMO

Solitary fibrous tumors (SFTs) are a unique group of mesenchymal neoplasms of fibroblastic or myofibroblastic origin and are extremely rare in the oral cavity. The present study reported two additional cases of SFTs in the soft palate, along with the computed tomography characteristics, which demonstrated well-circumscribed soft tissue lesions with marked and homogenous enhancement. Following wide resection, one of the cases showed certain malignant pathological characteristics, including infiltration of mucinous gland, hypercellularity, nuclear atypia and weak positive staining for S-100. In our experience, SFTs should be considered as a differential diagnosis when a well-circumscribed and solid mass in the soft palate is identified.

4.
Asian Pac J Cancer Prev ; 15(6): 2759-64, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24761897

RESUMO

AIM: This study aims to investigate the manifestation of CT, MRI and dynamic enhanced scans for primary hepatic neuroendocrine cell carcinoma. METHODS: CT or MRI arterial and venous phase scan images of 19 cases of pathologically confirmed PHNEC were retrospectively analyzed. RESULTS: 14 cases (73.68%) with single lesion, 5 cases (26.3%) with multiple lesions, with an average diameter of 13.2 cm. Some 12 cases (63.16%) showed inhomogeneous enhancement, seven cases (36.8%) showed homogeneous enhancement, 13 cases (68.4%) demonstrated significant enhancement in the arterial phase, 13 cases (68.4%) had significantly enhanced portal venous phase including 7 cases (36.8 %) with portal venous phase density or signal above the arterial phase and 5 cases (26.3%) with the portal vein density or signal below the arterial phase. Seven cases (36.8%) had continued strengthened separate shadows in the center of the lesion. Thrombosis were not seen in portal veins. CONCLUSION: CT and MRI images of liver cell neuroendocrine carcinoma have certain characteristics that can provide valuable information for diagnosis and differential diagnosis.


Assuntos
Carcinoma Neuroendócrino/diagnóstico , Processamento de Imagem Assistida por Computador , Neoplasias Hepáticas/diagnóstico , Imagem por Ressonância Magnética/métodos , Tomografia Computadorizada por Raios X/métodos , Adolescente , Adulto , Idoso , Criança , Diagnóstico Diferencial , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Adulto Jovem
5.
Oncol Lett ; 7(4): 1053-1056, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24660035

RESUMO

Ectopia of the pancreatic tissue is a developmental anomaly found in ~2% of all autopsies, and 70~90% of these anomalies are located in the gastrointestinal tract. Mediastinal localization of an ectopic pancreas is extremely rare. Herein, we report two cases with mediastinal ectopic pancreas clarified by pathology and shown by thoracic contrast-enhanced computed tomography (CT) and magnetic resonance imaging (MRI). In addition, a brief review of the relevant literatures is presented. Although CT and MRI manifestations of this lesion are nonspecific, certain notable findings need to be focused on. When there is a mass in the anterior mediastinum with marked and heterogeneous enhancement, along with necrotic and liquefied non-enhanced areas in the center, ectopic pancreas should be considered and differentiated from other neoplasms in this region.

6.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 44(4): 578-83, 2013 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-24059112

RESUMO

OBJECTIVE: To evaluate the correlation between image quality and thoracic diameters, anteroposterior diameter (AP) and right-left diameter (RL) for the optimization of reducing radiation dose in coronary artery imaging with Dual-source CT. METHODS: 118 patients underwent CT coronary artery imaging (CTCA) were divided into two groups (A and B) according to body mass index (BMI). There were 58 patients in group A with BMI values > or = 25 kg/m2 and < 30 kg/m2; and 60 patients in group B with BMI values < 25 kg/m2. Scan parameters: collimation 64 X 0.6 mm, reconstruction slice thickness 0.75 mm, reconstructin interval 0.7 mm, FOV 150-180 mm, the pitch adjusted according to heart rate automatically. CT imagings were obtained with tube voltage 100 kV, tube current 330 mAs (group A) and 100 kV, tube current 220 mAs (group B). The contrast-noise ratio (CNR), signal to noise ratio (SNR), as well as blind correlation test score values were calculated to establish the relationship among BMI, AP, RL and CNR, SNR. RESULTS: RL of five levels in groups of A, B were correlated to CNRa (P < 0.05). In group A and B (except iii, iv level of Group A), AP were associated with CNRa (P < 0.05). In addition to ii, iv level of group A, v level of group B, BMI were associated with CNRa (P < 0.05). The correlation coefficient of CNRa and RL of group A except ii level was greater than that of CNRa and AP. The correlation coefficient of CNRa, SNRa and RL of group B was greater than that of CNRa, SNRa and AP. Except iii level, the correlation coefficient of CNRa, SNRa and AP of group A was greater than that of CNRa, SNRa and BMI. Except ii level, the correlation coefficient of CNRa and AP of group B was greater than that of CNRa and BMI. CONCLUSION: Thoracic diameter of RL can be used as a guider to select the appropriate scan protocol in the coronary imaging acqusition with dual-source CT.


Assuntos
Angiografia Coronária , Doses de Radiação , Intensificação de Imagem Radiográfica , Tórax/anatomia & histologia , Tomografia Computadorizada Espiral , Adulto , Idoso , Idoso de 80 Anos ou mais , Carga Corporal (Radioterapia) , Índice de Massa Corporal , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/diagnóstico por imagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
7.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 44(3): 414-8, 2013 May.
Artigo em Chinês | MEDLINE | ID: mdl-23898525

RESUMO

OBJECTIVE: To develop a set of combined criteria of multiple features of chest CT for discriminating between benign and malignant lung lesions. METHODS: Patients whose chest CT showed abnormalities were recruited from the West China Hospital in March and April 2010. The patients were examined with bronchoscopy and the results of CT and pathology were compared. RESULTS: A total of 105 patients participated in this study and 85 had confirmed pathological results. The CT identified 27 cases of malignant lesions, 22 of which were confirmed by the pathology. The CT identified 58 cases of benign lesions, 55 of which were confirmed by the pathology. The set of combined criteria of multiple features of chest CT had an accuracy of 90.59%, a sensitivity of 88.00%, and a specificity of 91.67% in diagnosing benign and malignant lung lesions. CONCLUSION: The combined criteria of multiple imaging signs of CT have good clinical values for diagnosing malignant lung lesions.


Assuntos
Neoplasias Pulmonares/diagnóstico por imagem , Nódulo Pulmonar Solitário/diagnóstico por imagem , Tomografia Computadorizada Espiral/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Biópsia por Agulha , Broncoscopia/métodos , Diagnóstico Diferencial , Feminino , Humanos , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Nódulo Pulmonar Solitário/patologia , Adulto Jovem
8.
Clin Imaging ; 36(5): 602-5, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22920371

RESUMO

Interrupted aortic arch (IAA) is a rare congenital cardiovascular condition. A patient with uncorrected IAA accompanied by rich collateral arteries can survive to adulthood asymptomatically. However, IAA complicated by aortic dissection is life threatening. Herein, we report a rare case of an isolated IAA accompanied by type B aortic dissection and extensive collateral arteries detected by multidetector computed tomography in a 38-year-old man. The imaging findings of the case are presented, and the utility of multidetector computed tomography in the evaluation of this condition is discussed.


Assuntos
Aneurisma da Aorta Torácica/diagnóstico por imagem , Coartação Aórtica/diagnóstico por imagem , Adulto , Aneurisma da Aorta Torácica/terapia , Coartação Aórtica/terapia , Aortografia , Circulação Colateral , Diagnóstico Diferencial , Humanos , Masculino , Tomografia Computadorizada por Raios X/métodos
9.
Clin Imaging ; 36(5): 619-22, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22920376

RESUMO

Primary angiosarcoma of the spleen is rare, usually widespread or has a splenic rupture by the time of presentation, and almost always has poor prognosis; early radiological diagnosis is necessary for improving the survival rate. We report two special cases of this disease. Both patients did not have pathologic metastasis or splenic rupture, but their computed tomography (CT) manifestations were distinct from each other and had uncommon characteristics. We compared the CT features with pathological findings.


Assuntos
Hemangiossarcoma/diagnóstico por imagem , Neoplasias Esplênicas/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Idoso , Meios de Contraste , Diagnóstico Diferencial , Feminino , Hemangiossarcoma/patologia , Hemangiossarcoma/cirurgia , Humanos , Esplenectomia , Neoplasias Esplênicas/patologia , Neoplasias Esplênicas/cirurgia , Adulto Jovem
10.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 43(2): 196-9, 2012 Mar.
Artigo em Chinês | MEDLINE | ID: mdl-22650030

RESUMO

OBJECTIVE: To observe the superior attachment of renal fascia (RF) and the perirenal space (PS) in order to identify the spreading pathway of inflammatory and malignant tumors. METHODS: Multidetector computed tomography (MDCT), with double phase enhancement scanning and three dimensional reconstruction of images were performed on 121 healthy adults. The RF attachments upward were observed and their connections with the PS were evaluated. RESULTS: The left anterior renal fascia (ARF) fusing with peritoneum accounted for 27.3% (33/121) and the left ARF fusing with peritoneum of the spleen laterally and with the subdiaphragmatic fascia interiorly accounted for 19.8% (24/121) of the upper attachments of the RF above the upper renal pole (URP). Under the URP, the left ARF fusing with peritoneum accounted for 52.9% (64/121) of the upper attachments of the RF. The right ARF fusing with peritoneum did not display above the URP. The posterior renal fascia (PRF) of both side fused with subdiaphragmatic fascia under the URP. The ARF and PRF of the left and right kidney showed no upward integration. The right PS communicated with the subdiaphragmatic retroperitoneal space (SDRS) that is a bare area of the liver. The left PS communicating with the SDRS accounted for 80.2% (97/121) and the left PS communicating with the SDRS laterally but separating from the SDRS interiorly accounted for 19.8% (24/121) of the SDRS communication. CONCLUSION: MDCT and three-dimensional reconstruction can remarkably display RF and its superior attachment, as well as the connection between the PS and SDRS.


Assuntos
Fáscia/anatomia & histologia , Rim/anatomia & histologia , Espaço Retroperitoneal/anatomia & histologia , Espaço Retroperitoneal/diagnóstico por imagem , Tomografia Computadorizada Espiral/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Fáscia/diagnóstico por imagem , Feminino , Humanos , Imagem Tridimensional , Rim/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Adulto Jovem
11.
Clin Imaging ; 36(4): 394-7, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22726983

RESUMO

Paragonimiasis is a parasitic infection caused by the genus Paragonimus and usually leads to pulmonary disease. Hepatic paragonimiasis is rare, but duodenal and splenic involvement of this disease has not yet been reported in the literature. Herein, we report two rare cases of hepatic paragonimiasis with simultaneous duodenal or splenic involvement, respectively, and described their CT features. Both patients were lifelong residents of an endemic area of paragonimiasis and were confirmed clinicopathologically.


Assuntos
Duodenopatias/diagnóstico por imagem , Paragonimíase/diagnóstico por imagem , Paragonimus/isolamento & purificação , Baço/diagnóstico por imagem , Animais , Anti-Helmínticos/uso terapêutico , Duodenopatias/tratamento farmacológico , Duodenopatias/parasitologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Paragonimíase/tratamento farmacológico , Praziquantel/uso terapêutico , Medição de Risco , Índice de Gravidade de Doença , Baço/parasitologia , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento , Adulto Jovem
13.
Circ Arrhythm Electrophysiol ; 5(2): 345-50, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22345391

RESUMO

BACKGROUND: The anatomic features of left atrial diverticula (LAD) are still unclear in patients with atrial fibrillation (AF). The purpose of this study was to evaluate the prevalence and morphological characteristics of LAD in patients referred for radiofrequency transcatheter ablation of AF with dual-source computed tomography. METHODS AND RESULTS: Dual-source computed tomography images were obtained in 214 patients referred for AF catheter ablation and 214 sex- and age-matched control subjects. Images were analyzed to determine the prevalence and morphological characteristics of LAD and their relationship with adjacent pulmonary veins and left atrial appendage. In AF patients 77 (36.0%) (95% confidence interval, 29.6-42.4%) had 90 LAD, whereas in control subjects 70 (32.7%) (95% confidence interval, 26.4-39.0%) had 81 LAD (P=0.551). In patients with AF, LAD locations were right anterosuperior (47.8%), left anterosuperior (8.9%), left lateral (32.2%), interatrial septum (4.4%), right inferior (5.6%), and posterosuperior (1.1%) walls, respectively. The mean size of LAD was 5.3±2.9×5.6±3.3 mm. The wall of the LAD was much thinner than that of adjacent left atrium (0.89±0.46 versus 2.39±0.83 mm). Most LAD were located close to a pulmonary vein or atrial appendage ostium, with a mean distance of 8.7-13.1 mm. CONCLUSIONS: LAD are common, with a prevalence of 36.0% in patients with AF, which is not statistically greater than that in patients without AF. Thin-walled LAD are more commonly located on the superior anterior wall of left atrium and close to common ablation sites.


Assuntos
Fibrilação Atrial/cirurgia , Ablação por Cateter , Divertículo/diagnóstico por imagem , Divertículo/epidemiologia , Átrios do Coração/diagnóstico por imagem , Cardiopatias/diagnóstico por imagem , Cardiopatias/epidemiologia , Adulto , Idoso , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Variações Dependentes do Observador , Prevalência , Estudos Retrospectivos , Tomografia Computadorizada por Raios X
14.
Eur J Radiol ; 81(4): e421-5, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21440394

RESUMO

AIM: To illustrate the MDCT features of hepatic paragonimiasis and correlate the results with clinicopathological findings. MATERIALS AND METHODS: Eighteen patients (8 male, 10 female; mean age 37years) with hepatic paragonimiasis were included in this study. MDCT features of their hepatic lesions were retrospectively reviewed and correlated with clinicopathological findings. RESULTS: All patients were lifelong residents in endemic areas of paragonimiasis, especially Paragonimiasis skrjabini variety. Abdominal pain or discomfort, fever and high eosinophil percentage were the predominant clinical features. In total, 21 lesions were detected on MDCT images, 18 (85.7%) directly contacted the hepatic capsule and 3 (14.3%) were adjacent to the capsule. Segment V (26%), VIII (26%) and VI (18.5%) were the most commonly involved sites. Sixteen lesions (76%) were conglomerated cystic or multilocular and 5 (24%) were solid. On plain MDCT scan, the margin and internal detail of the lesions were not clear except for one cystic variety, while they were clearly demonstrated on enhanced images. Single or multiple cysts with different diameters were commonly detected in the non-solid lesions, and some of them were mutually connected with tortuous tract formation. Among the solid lesions, 2 and 3 showed tubular and homogeneous enhancement, respectively. CONCLUSION: Peripherally distributed lesions, mutually connected cysts with tortuous tract formation, and tubular enhancement, which may be closely associated with the infection route and migration of the worm, could be seen as the main MDCT features of hepatic paragonimiasis.


Assuntos
Hepatopatias Parasitárias/diagnóstico por imagem , Paragonimíase/diagnóstico , Tomografia Computadorizada por Raios X/métodos , Adolescente , Adulto , Idoso , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Estatística como Assunto , Adulto Jovem
15.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 42(4): 556-9, 2011 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-21866648

RESUMO

OBJECTIVE: To determine the diagnostic value of time-signal intensity curve (TIC) in distinguishing breast malignant tumors from benign lesions. METHODS: Forty-four patients with 50 breast lesions were recruited in the study, including 24 pathologically confirmed benign lesions and 26 malignant tumors. All patients received dynamic contrast-enhanced breast MRI scanning a week before surgery. The time-signal intensity curves in the regions of interest (ROI) and eight items of TIC including shape, T peak, E peak, Slope(i), E1, E2, W peak-7, and W peak-9 were compared between benign lesions and malignant tumors. The receive operating characteristic curves (ROC) were depicted for those indicators with significant statistical differences. RESULTS: Six items of TIC including shape, T peak, Slope(i), E1, E2, and W peak-9 were significantly different (P<0.05) between malignant tumors and benign lesions. The sensitivities of shape, T peak, Slope(i), E1, E2, and W peak-9 for diagnosing breast malignant tumors were 92.3%, 95.83%, 80.77%, 61.53%, 69.23%, and 69.23% respectively. Their specificities were 87.5%, 92.3%, 95.8%, 87.5%, 79.17%, and 79.17% respectively. TIC curve shape, T peak and Slope(i) were better than E1, E2 and W peak-9 in diagnosing breast malignant lesions (P<0.05). CONCLUSION: Benign and malignant breast tumors can be differentiated according to TIC. TIC curve shape, T peak and Slope(i) are better than E1, E2 and W peak-9 in distinguishing malignant breast tumors from benign lesions.


Assuntos
Neoplasias da Mama/diagnóstico , Aumento da Imagem/métodos , Imagem por Ressonância Magnética/métodos , Adolescente , Adulto , Neoplasias da Mama/patologia , Meios de Contraste , Diagnóstico Diferencial , Feminino , Humanos , Pessoa de Meia-Idade , Adulto Jovem
18.
J Thorac Imaging ; 25(4): W136-7, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20531230

RESUMO

Pulmonary artery dissection is a rare but life-threatening disease, which has mainly been diagnosed at postmortem examination rather than in living patients. Herein we report an unusual case of pulmonary artery dissection involving the right and left pulmonary arteries with Eisenmenger syndrome confirmed by multidetector computed tomography (CT) and echocardiography in a living patient. The CT findings of our case are presented, and the utility of multidetector CT in the evaluation of pulmonary artery dissection is discussed.


Assuntos
Malformações Arteriovenosas/etiologia , Complexo de Eisenmenger/complicações , Complexo de Eisenmenger/diagnóstico por imagem , Artéria Pulmonar/anormalidades , Artéria Pulmonar/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos , Adulto , Malformações Arteriovenosas/diagnóstico por imagem , Humanos , Masculino , Ultrassonografia
19.
AJR Am J Roentgenol ; 195(1): W76-80, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20566785

RESUMO

OBJECTIVE: The purpose of this study was to investigate the effect of the degree of sternal depression on the cardiac rotation of pectus excavatum as depicted with helical CT. MATERIALS AND METHODS: Sixty-three patients (53 boys, 10 girls; mean age, 9.7 +/- 7 years) with pectus excavatum who underwent helical chest CT and surgical correction were included in this study. Depth of sternal depression, CT depression index, cardiac rotation angle, and pulmonary vein angle were measured, and the correlation of these parameters was analyzed. RESULTS: The mean sternal depression was 21 +/- 7 mm; CT depression index, 2.7 +/- 1.4; cardiac rotation angle, 55 degrees +/- 9 degrees ; and pulmonary vein angle, 52 degrees +/- 12 degrees . The sternal depression (18 mm) in patients with a CT depression index less than 2.4 was less than that in patients with a CT depression index of 2.4-2.9 (sternal depression, 21 mm) or greater than 2.9 (sternal depression, 28 mm) (p < 0.01). Similarly, the cardiac rotation angle (49 degrees +/- 5 degrees ) in patients with a CT depression index less than 2.4 was smaller than that in patients with a CT depression index of 2.4-2.9 (55 degrees +/- 6 degrees ) or greater than 2.9 (64 degrees +/- 12 degrees ) (p < 0.01). The pulmonary vein angle in patients with a CT depression index less than 2.4 (59 degrees +/- 11 degrees ) was larger than that in patients with a CT depression index of 2.4-2.9 (50 degrees +/- 12 degrees ) or a CT depression index greater than 2.9 (45 degrees +/- 8 degrees ) (p < 0.01). Cardiac rotation angle had a positive correlation with CT depression index (r = 0.75, p < 0.01). CONCLUSION: The degree of sternal depression has a positive correlation with the degree of cardiac rotation in pectus excavatum. Helical CT is a valuable technique for evaluating the chest deformity and resultant cardiac rotation.


Assuntos
Tórax em Funil/diagnóstico por imagem , Coração/diagnóstico por imagem , Tomografia Computadorizada Espiral/métodos , Adolescente , Criança , Feminino , Tórax em Funil/cirurgia , Humanos , Masculino , Interpretação de Imagem Radiográfica Assistida por Computador
20.
Eur J Gastroenterol Hepatol ; 22(3): 289-95, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19543103

RESUMO

OBJECTIVE: To determine the utility of 64-row multidetector computed tomography (MDCT) in assessing the changes of gastric fundic and oesophageal varices before and after transjugular intrahepatic portosystemic shunt (TIPS) with concurrent left gastric vein embolization. METHODS: Twenty-eight consecutive patients with gastric fundic and oesophageal varices resulted from posthepatitic cirrhosis, clinically confirmed with endoscopy, were enrolled into our study. All the patients underwent thoracicoabdominal triphasic enhancement scans with 64-row MDCT 2 weeks before TIPS along with embolizing left gastric vein, and 6 months after the therapy. Before and after the therapy, the varices shown on multiplanar reconstruction (MPR) were compared by Fisher's exact test to evaluate the changes. RESULTS: Gastric fundic and oesophageal varices were shown in 26 patients (92.9%) and 25 (89.3%) on MPR before the therapy, respectively. After the therapy, these varices diminished markedly, and were illustrated in six (21.4%) and 10 patients (35.7%), respectively (all P<0.05). As for the main inflowing vessel of the varices (left gastric vein), it was illustrated in 28 patients (100.0%) on preoperative CT-MPR. After the embolization, the left gastric vein had been completely occluded on postoperative CT-MPR. CONCLUSION: Significant eradication of gastric fundic and oesophageal varices on follow-up CT-MPR portography can be considered to assess the changes of gastric fundic and oesophageal varices before and after TIPS with concurrent left gastric vein embolization, and 64-row MDCT can be an effective modality to evaluate the changes.


Assuntos
Embolização Terapêutica , Varizes Esofágicas e Gástricas/terapia , Esôfago/diagnóstico por imagem , Fundo Gástrico/diagnóstico por imagem , Cirrose Hepática/terapia , Derivação Portossistêmica Transjugular Intra-Hepática , Portografia/métodos , Tomografia Computadorizada Espiral , Adulto , Idoso , Meios de Contraste , Varizes Esofágicas e Gástricas/diagnóstico por imagem , Varizes Esofágicas e Gástricas/etiologia , Feminino , Fundo Gástrico/irrigação sanguínea , Humanos , Iopamidol , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Resultado do Tratamento , Veias
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