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1.
Am J Orthod Dentofacial Orthop ; 159(3): 305-311, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33641814

RESUMO

INTRODUCTION: The early diagnosis and interception of potential maxillary canine impaction is the most desirable approach for correcting their path of eruption. However, there is still a lack of evidence regarding the effect of rapid maxillary expansion (RME) on labially impacted canines. This study aimed to investigate the age-related effect of RME on labially impacted maxillary canines in order to reduce the risk of their impaction in the mixed dentition and to examine the proper timing of interceptive treatment. METHODS: All patients aged 7-10 years were treated with an RME appliance using the same protocol. The distance to the occlusal plane, axis to the midline, and distribution in different sectors-depending on the patients' age-were evaluated for maxillary canines before and after treatment on panoramic radiographs in order to detect changes in the position of the impacted canines. These geometric measurements in the impacted canines were also validated by observing the nontreated canines at each age. RESULTS: Significant differences existed between the impacted canines and the erupted canines in all 3 categories in all age groups. RME treatment modulated the position of the impacted canines in all age groups. Interestingly, a statistically significant difference before and after RME in all categories was detected in patients aged <8 years. A discriminant analysis also showed a positive association of RME treatment with the risk of labially impacted canines. The standardized regression coefficients showed that the angulation of the maxillary canine was the most important predictor for impaction. CONCLUSIONS: Our findings indicate that RME treatment in the early mixed dentition was effective for managing labially impacted maxillary canines. An age of 7-8 years with early mixed dentition might be the most appropriate timing for therapeutic intervention on the basis of RME treatment for buccal canine impaction.


Assuntos
Técnica de Expansão Palatina , Dente Impactado , Estudos de Casos e Controles , Criança , Dente Canino/diagnóstico por imagem , Humanos , Maxila/diagnóstico por imagem , Dente Impactado/diagnóstico por imagem , Dente Impactado/terapia
2.
Am J Orthod Dentofacial Orthop ; 159(3): 343-351.e1, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33641815

RESUMO

INTRODUCTION: The aim of this investigation was to evaluate the reproducibility of a voxel-based 3-dimensional superimposition method and the effect of segmentation error on determining soft tissue surface changes. METHODS: A total of 15 pairs of serial cone-beam computed tomography images (interval: 1.69 ± 0.37 years) from growing subjects (initial age: 11.75 ± 0.59 years) were selected from an existing digital database. Each pair was superimposed on the anterior cranial base, in 3 dimensions with Dolphin 3D software (version 2.1.6079.17633; Dolphin Imaging & Management Solutions, Chatsworth, Calif). The reproducibility of superimposition outcomes and surface segmentation were tested with intra- and interoperator comparisons. RESULTS: Median differences in inter- and intrarater measurements at various areas presented a range of 0.08-0.21 mm. In few instances, the differences were larger than 0.5 mm. In areas where T0-T1 changes were increased, the error did not appear to increase. However, the method error increased the farther the measurement area was from the superimposition reference structure. For individual images, the median soft tissue segmentation error ranged from 0.05 to 0.06 at various areas and in no subject exceeded 0.13 mm. CONCLUSIONS: The presented voxel-based superimposition method was efficient and well reproducible. The segmentation process was a minimal source of error; however, there were a few cases in which the total error was more than 0.5 mm and could be considered clinically significant. Therefore, this method can be used clinically to assess 3-dimensional soft tissue changes during orthodontic treatment in growing patients.


Assuntos
Tomografia Computadorizada de Feixe Cônico , Imageamento Tridimensional , Criança , Face/diagnóstico por imagem , Humanos , Reprodutibilidade dos Testes , Base do Crânio
3.
Am J Orthod Dentofacial Orthop ; 159(3): 352-359, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33641816

RESUMO

INTRODUCTION: The objective of this research was to compare the oropharyngeal volume and minimal cross-sectional area (MCA) changes after maxillary expansion using either the Damon system or Hyrax appliances as assessed through cone-beam computed tomography (CBCT) imaging. METHODS: Patients aged between 11 and 17 years with skeletal maxillary transverse discrepancy in need of maxillary expansion were included and allocated randomly into 1 of the 2 treatment groups, Damon or Hyrax. Patients underwent CBCT imaging at 2 time points: T1, after initial clinical evaluation before treatment, and T2, after completion of full orthodontic treatment. The CBCT data were assessed using Dolphin software (Dolphin Imaging & Management Solutions, Chatsworth, Calif). In addition, a qualitative assessment of breathing function was done using the modified Nasal Obstruction and Septoplasty Effectiveness Scale questionnaire. RESULTS: A statistically significant increase in the oropharyngeal volume (2.23 mL; P = 0.005) and MCA (29.72 mm2; P = 0.007) after the completion of treatment (T2 - T1) for the Hyrax group was suggested. No statistically significant difference was found in the Damon group for volume (1 mL; P = 0.311) and for MCA (7.32 mm2; P = 0.643). In addition, no statistically significant difference was found in the breathing function in both treatment groups (P >0.05). CONCLUSIONS: Hyrax expansion followed by fixed appliances produced more dimensional upper airway changes at the oropharyngeal level than the Damon system approach. No breathing functional changes were noted in either samples.


Assuntos
Maxila , Técnica de Expansão Palatina , Adolescente , Criança , Tomografia Computadorizada de Feixe Cônico , Humanos , Nariz , Orofaringe/diagnóstico por imagem
4.
Acta Gastroenterol Belg ; 84(1): 43-50, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33639692

RESUMO

Background: Assessment of liver disease severity in chronic Hepatitis C (CHC) is essential both in pretreatment and posttreatment period. We assessed the impact of direct-acting antiviral therapy on liver stiffness regression measured by Vibration Controlled Transient Elastography (VCTE) in patients with CHC and evaluated the diagnostic performance of the APRI and FIB-4 scores compared to VCTE in detecting advanced fibrosis and cirrhosis (F3/F4). Methodology: Retrospective analysis of consecutive patients with CHC who underwent VCTE before and after DAA therapy was done. APRI and FIB-4 scores were compared to VCTE. Results: 88 (56.78%) patients-12 (F3) and 76 (F4) according to VCTE, had advanced fibrosis pretreatment, which reduced to 69 (44.52%) - 10 (F3) and 59 (F4) after 12 weeks DAA therapy. Significant reduction in VCTE value from 14.08 ± 9.05 KPa to 11.84 ± 8.31 KPa (p=0.002) was noted. There is significant reduction in APRI, FIB-4 and GUCI score posttreatment which was not the case with Lok score and Bonacini score. Before therapy, FIB-4 outperformed others to predict advanced fibrosis with score >2.13 (AUC 0.93), having sensitivity 76%, specificity 96% and accuracy 86%. However posttreatment, APRI and GUCI score performed best to predict F3/F4 fibrosis with score >0.63 (AUC 0.97) and >0.64 (AUC 0.96), having sensitivity, specificity and accuracy of 85%, 96.6% and 92% ; 85%, 6.6% and 92% respectively. Conclusion: Before therapy, FIB-4 had the best accuracy in predicting advanced fibrosis whereas APRI and GUCI score were the best indices post-treatment.


Assuntos
Técnicas de Imagem por Elasticidade , Hepatite C Crônica , Antivirais , Aspartato Aminotransferases , Biomarcadores , Hepatite C Crônica/complicações , Hepatite C Crônica/tratamento farmacológico , Humanos , Cirrose Hepática/diagnóstico por imagem , Estudos Retrospectivos , Vibração
5.
Int J Med Sci ; 18(5): 1277-1284, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33526989

RESUMO

Rationale: To assess the longitudinal changes and relationships of clinical measures and extent of CT lung abnormalities in COVID-19. Methods: 81 patients with COVID-19 were prospectively enrolled and followed until discharge. CT scores were quantified on a basis of a CT scoring system where each lung was divided into 3 zones: upper (above the carina), middle, and lower (below the inferior pulmonary vein) zones; each zone was evaluated for percentage of lung involvement on a scale of 0-4 (0, 0%; 1, 0-24%; 2, 25% - 49%; 3, 50% -74%; 4, >74%).Temporal trends of CT scores and the laboratory parameters characteristic of COVID-19 were analyzed. Correlations between the two were determined at three milestones (initial presentation, worst CT manifestation, and recovery finding before discharge). Their correlations with duration to worst CT manifestation and discharge from symptom onset were evaluated. Results: CT scores peaked during illness days 6-11 (median: 5), and stayed steady. C-reactive protein and lactate dehydrogenase increased, peaked on illness days 6-8 and 8-11 (mean: 23.5 mg/L, 259.9 U/L), and gradually declined. Continual decrease and increase were observed in hemoglobin and lymphocyte count, respectively. Albumin reduced and remained at low levels with a nadir on illness days 12-15 (36.6 g/L). Both initial (r = 0.58, 0.64, p < 0.05) and worst CT scores (r = 0.47, 0.65, p < 0.05) were correlated with C-reactive protein and lactate dehydrogenase; and CT scores before discharge, only with albumin (r = -0.41, p < 0.05). Duration to worst CT manifestation was associated with initial and worst CT scores (r = 0.33, 0.29, p < 0.05). No parameters were related to timespan to discharge. Conclusion: Our results illustrated the temporal changes of characteristic clinical measures and extent of CT lung abnormalities in COVID-19. CT scores correlated with some important laboratory parameters, and might serve as prognostic factors.


Assuntos
/diagnóstico por imagem , Pulmão/diagnóstico por imagem , Adulto , Proteína C-Reativa/metabolismo , Feminino , Humanos , L-Lactato Desidrogenase/sangue , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Radiografia Torácica , Tomografia Computadorizada por Raios X
7.
Head Face Med ; 17(1): 3, 2021 Feb 03.
Artigo em Inglês | MEDLINE | ID: mdl-33531044

RESUMO

BACKGROUND: Orthodontic root resorptions are frequently investigated in small animals, and micro-computed tomography (µCT) enables volumetric comparison. Despite, due to overlapping histograms from dentine and bone, accurate quantification of root resorption is challenging. The present study aims at (i) validating a novel automated approach for tooth segmentation (ATS), (ii) to indicate that matching of contralateral teeth is eligible to assess orthodontic tooth movement (OTM) and root resorption (RR), (iii) and to apply the novel approach in an animal trial performing orthodontic tooth movement. METHODS: The oral apparatus of three female mice were scanned with a µCT. The first molars of each jaw and animal were segmented using ATS (test) and manually (control), and contralateral volumes were compared. Agreement in root volumes and time efficiency were assessed for method validation. In another n = 14 animals, the left first upper molar was protracted for 11 days at 0.5 N, whereas the contralateral molar served as control. Following ATS, OTM and RR were estimated. RESULTS: ATS was significantly more time efficient compared to the manual approach (81% faster, P < 0.01), accurate (volume differences: - 0.01 ± 0.04 mm3), and contralateral roots had comparable volumes. Protracted molars had significantly lower root volumes (P = 0.03), whereas the amount of OTM failed to reveal linear association with RR (P > 0.05). CONCLUSIONS: Within the limits of the study, it was demonstrated that the combination of ATS and registration of contralateral jaws enables measurements of OTS and associated RR in µCT scans.


Assuntos
Reabsorção da Raiz , Animais , Feminino , Camundongos , Dente Molar/diagnóstico por imagem , Roedores , Reabsorção da Raiz/diagnóstico por imagem , Técnicas de Movimentação Dentária , Raiz Dentária , Microtomografia por Raio-X
8.
An Acad Bras Cienc ; 93(suppl 2): e20200762, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33533794

RESUMO

CT scans of the type braincase of Limaysaurus tessonei (MUCPv-205) allowed the first study of the endocranial cavities (brain and inner ear) for this South American taxon. Comparisons of the cranial endocast of L. tessonei with other sauropods indicate that 1) South American rebbachisaurids are more similar to each other than to Nigersaurus, and 2) certain association of traits are present in all known rebbachisaurid cranial endocasts, such as lack of an enlarged dorsal expansion, poorly laterally projected cerebral hemispheres, presence of a small flocculus of the cerebellum, markedly long passage for the facial nerve (CN VII), markedly inclined pituitary, and presence of a passage for the basilar artery communicating the floor of the endocranial cavity and the pituitary fossa. The relatively enlarged olfactory region indicates that smell was an important sense for this group of dinosaurs, suggesting different olfactory capabilities when compared to coeval titanosaurs.


Assuntos
Dinossauros , Fósseis , Animais , Evolução Biológica , Encéfalo/diagnóstico por imagem , Dinossauros/anatomia & histologia , Crânio/anatomia & histologia , Crânio/diagnóstico por imagem , Tomografia Computadorizada por Raios X
9.
Oper Orthop Traumatol ; 33(1): 55-76, 2021 Feb.
Artigo em Alemão | MEDLINE | ID: mdl-33533950

RESUMO

OBJECTIVE: Arthroscopy of the central and peripheral compartment is an obligatory part of hip arthroscopy to evaluate, confirm or find pathologies and their treatment. INDICATIONS: Loose bodies, lesions of the labrum and ligamentum capitis femoris, cartilage damage, femoroacetabular impingement, synovial diseases, initial osteoarthritis, femoral head necrosis (ARCO stage 1-2) and adhesions. CONTRAINDICATIONS: Local infections, bone tumors near the joint, extensive peri-articular ossification, severe arthrofibrosis with peri-articular involvement, advanced osteoarthritis, protrusio acetabuli, advanced femoral head necrosis (from ARCO stage 3-4 extended), recent fracture of the acetabulum and extensive joint capsule tears. SURGICAL TECHNIQUE: Precise positioning of the patient on a fracture table is essential to avoid complications. Central and peripheral compartment arthroscopy requires at least 2, in some cases more than 3 portals. Arthroscopy of the central compartment is carried out under traction by an anterolateral (AL) and anterior portal (A). A posterolateral (PL) portal and distal ventrolateral portal (DVL) may also be required. For peripheral compartment arthroscopy, an anterolateral (AL) and anterior (A), alternatively/additively a proximal ventrolateral portal (PVL) and/or and distal ventrolateral (DVL) portal are established in 45° flexion and no traction of the hip joint. POSTOPERATIVE MANAGEMENT: Mobilization with full weight bearing from the day of the operation, crutches are optional. After stimulating cartilage surgery or autologous chondrocyte transplantation, partial weight bearing of 10 kg on crutches is indicated until the end of postoperative week 6. Physiotherapy with full range of motion allowed, except for labrum refixation, should take place from postoperative day 1. RESULTS: From 01/2010-12/2019, 2815 hip arthroscopies were performed; average patient age 43 (12-81) years. All procedures include a diagnostic arthroscopy of the hip. Two to 5 portals were used. Average operation time was 70 (18-48) min. In 26 cases (0.9%), arthroscopy of the central compartment at a high CE angle was not possible or not performed, even after previous arthroscopy of the peripheral compartment with capsule release. Intraoperative or directly postoperative problems and complications were rare, e.g., damage to the skin/genitals due to contact pressure (0.7%), instrument breakage (0.5%), transient lesions of the pudendus nerve (<1.5%).


Assuntos
Impacto Femoroacetabular , Artropatias , Adulto , Idoso , Idoso de 80 Anos ou mais , Artroscopia , Impacto Femoroacetabular/diagnóstico por imagem , Impacto Femoroacetabular/cirurgia , Articulação do Quadril/diagnóstico por imagem , Articulação do Quadril/cirurgia , Humanos , Artropatias/diagnóstico por imagem , Artropatias/cirurgia , Pessoa de Meia-Idade , Resultado do Tratamento
10.
Hinyokika Kiyo ; 67(1): 7-10, 2021 Jan.
Artigo em Japonês | MEDLINE | ID: mdl-33535290

RESUMO

An 83-year-old man with left lower back pain was found to have a 5 cm mass in contact with the right adrenal gland and a 12 mm left ureteral stone by abdominal plain computed tomography. An abdominal plain magnetic resonance imaging T2-weighted image revealed a heterogeneous high signal mass in the right adrenal gland. Pheochromocytoma, adrenal carcinoma, and retroperitoneal neurogenic tumor were suspected. Tumor markers and endocrine examinations were within standard values. Laparoscopic right adrenalectomy was performed. A 4×3.6 cm, 62 g solid tumor was found in contact with right adrenal gland. Histopathologically, hobnail-like vascular endothelial cells were found in the tumor, but no malignant findings such as multi-layered vascular endothelial cells and nuclear atypia were observed. This tumorwas diagnosed to be an anastomosing hemangioma.


Assuntos
Neoplasias das Glândulas Suprarrenais , Hemangioma , Feocromocitoma , Neoplasias das Glândulas Suprarrenais/diagnóstico por imagem , Neoplasias das Glândulas Suprarrenais/cirurgia , Adrenalectomia , Idoso de 80 Anos ou mais , Células Endoteliais , Hemangioma/diagnóstico por imagem , Hemangioma/cirurgia , Humanos , Masculino , Feocromocitoma/cirurgia
11.
Hinyokika Kiyo ; 67(1): 11-15, 2021 Jan.
Artigo em Japonês | MEDLINE | ID: mdl-33535291

RESUMO

A 70-year-old man complaining of pain in his right leg presented to the Department of Orthopedics in our hospital. X-ray findings revealed calcifications around the left kidney. He was referred to our department for further examination. Computed tomography revealed a tumor 3 cm in diameter with calcifications and an obscure border that was located on the caudal side of the pancreas, anterior to the left iliopsoas muscle and at the left side of the aorta. Magnetic resonance imaging showed that the tumor had comparatively low intensity in diffusion-weighted images and the cell density was not high. The contrast of the tumor by enhanced computed tomography was weak, and we had difficulty judging whether the tumor was benign or malignant. Each tumor marker, immunity factor, and hormone-like catecholamine were within the normal range. We considered the retroperitoneal tumor with calcifications as Castleman disease or tumor of nerve origin. It is believed that most retroperitoneal tumors are malignant. We performed laparoscopic surgery to resect the retroperitoneal tumor. Histopathological diagnosis was a primary retroperitoneal venous malformation. Vascular malformation derived from the retroperitoneum is rare. Furthermore, very few cases of venous malformation in the retroperitoneum have been reported.


Assuntos
Neoplasias Retroperitoneais , Malformações Vasculares , Idoso , Humanos , Imagem por Ressonância Magnética , Masculino , Neoplasias Retroperitoneais/diagnóstico por imagem , Neoplasias Retroperitoneais/cirurgia , Espaço Retroperitoneal/diagnóstico por imagem , Tomografia Computadorizada por Raios X
12.
Hinyokika Kiyo ; 67(1): 23-26, 2021 Jan.
Artigo em Japonês | MEDLINE | ID: mdl-33535293

RESUMO

A 76-year-old male was previously found to have a renal cyst at the center of the right kidney, on a computed tomography (CT)scan for examination of another disease. The patient was admitted to the hospital because of fever. The CT scan showed an enlarged mass at the center of the right kidney and an increase in the density of peripheral fat tissue, suggesting an infection of the right renal cyst. In spite of conservative treatment with antibiotics, CT scan on the sixth day of admission revealed an increase in the size of the mass, and penetration in the ascending colon was suspected. An ultrasound-guided abscess puncture was performed, and a pigtail catheter (PC)was placed. Injection of contrast agent through the PC showed communication with the colon. The fistula site was identified using colon fiberscopy, and it was clipped. PC was removed after the closure of the fistula was confirmed by imaging. This is a rare case of renocolic fistula caused by an infected renal cyst, which was diagnosed by colon fiberscopy, and was treated by clipping the fistula.


Assuntos
Fístula , Doenças Renais Císticas , Neoplasias Renais , Idoso , Humanos , Rim , Doenças Renais Císticas/complicações , Doenças Renais Císticas/diagnóstico por imagem , Doenças Renais Císticas/cirurgia , Masculino , Tomografia Computadorizada por Raios X
13.
Hinyokika Kiyo ; 67(1): 37-41, 2021 Jan.
Artigo em Japonês | MEDLINE | ID: mdl-33535296

RESUMO

A 69-year-old man presented with gross hematuria. Cystoscopy revealed a large papillary tumor occupying the bladder. Magnetic resonance imaging showed a large bladder tumor more than 8cm in maximum diameter,suspected to be muscle-invasive disease. We performed the 1st transurethral resection of bladder tumor (TURBT) for the main purpose of pathological confirmation. Histopathological findings of the resected specimens showed urothelial carcinoma,low grade pTa. We performed subsequent treatments with TURBT twice,resulting in complete resection. The histopathological findings showed the same results as those of the 1st TURBT conclusively,which was consistent with non-muscle-invasive bladder cancer. He received intravesical instillation of pirarubicin eight times in total and has remained free from recurrence for more than 26 months after the final TURBT.


Assuntos
Neoplasias da Bexiga Urinária , Administração Intravesical , Idoso , Cistectomia , Humanos , Masculino , Músculos , Recidiva Local de Neoplasia , Neoplasias da Bexiga Urinária/diagnóstico por imagem , Neoplasias da Bexiga Urinária/tratamento farmacológico , Neoplasias da Bexiga Urinária/cirurgia
14.
Zhonghua Bing Li Xue Za Zhi ; 50(2): 114-118, 2021 Feb 08.
Artigo em Chinês | MEDLINE | ID: mdl-33535305

RESUMO

Objective: To analyze the clinicopathological characteristics, diagnosis and prognosis of meningioangiomatosis (MA), and to investige the possible origion of spindle cells. Methods: Seventeen cases of MA were collected at Xuanwu Hospital of Capital Medical University and the First Affiliated Hospital of Fujian Medical University, from June 2012 to March 2020. The clinical manifestations, radiologic, histopathologic, immunohistochemical features and patients' outcome were analyzed. The presumed origin of spindle cells was evaluated by immunohistochemical staining. Results: Of the 17 patients, 9 were males and 8 were females. The age ranged from 3 to 56 years old. Thirteen patients presented with seizure as the initial symptom. The lesions were solitary and located in the cerebral cortex. Histopathologically, there were proliferation of small blood vessels and perivascular spindle cells in the cerebral cortex. The spindle cells had no obvious atypia, mitoses and necrosis. Four cases were combined with transitional meningioma. Immunohistochemically, the proliferative perivascular spindle cells were positive for vimentin in all cases, and focally positive for EMA and SSTR2. Ki-67 proliferation index was low. Neurofibrillary tangles were demonstrated by AT8. All 17 patients received surgical treatment and were followed up for one to 93 months. None had seizure attacks or tumor recurrence. Conclusions: MA is a rare slow-growing intracranial lesion, and the perivascular spindle cells could be derived from meningothelial cells, and MA is often associated with degeneration of the cerebral cortex and meningioma. The patients have good prognosis after surgical treatment.


Assuntos
Neoplasias Meníngeas , Meningioma , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Imuno-Histoquímica , Masculino , Neoplasias Meníngeas/diagnóstico por imagem , Neoplasias Meníngeas/cirurgia , Meningioma/diagnóstico por imagem , Meningioma/cirurgia , Pessoa de Meia-Idade , Prognóstico , Vimentina , Adulto Jovem
20.
Arq Bras Cardiol ; 116(1): 68-74, 2021 01.
Artigo em Inglês, Português | MEDLINE | ID: mdl-33566967

RESUMO

BACKGROUND: Cardiomegaly on chest X-ray is an independent predictor of death in individuals with chronic Chagas cardiomyopathy (CCC). However, the correlation between increased cardiothoracic ratio (CTR) on chest X-ray and left ventricular end-diastolic diameter (LVEDD) on echocardiography is not well established in this population. OBJECTIVES: To assess the relationship between chest X-ray and LVEDD on echocardiography in patients with Chagas disease and its applicability to the Rassi score. METHODS: Retrospective study on 63 Chagas disease outpatients who underwent chest X-ray and echocardiography. Cardiomegaly on chest X-ray was defined as a CTR>0.5. LVEDD was analyzed as a continuous variable. ROC curve was used to evaluate the ability of LVEDD in detecting cardiomegaly by chest X-ray, with a cut-off point defined by the highest sum of sensitivity and specificity. RESULTS: Median age 61 years [interquartile range 48-68], 56% were women. CCC was detected in 58 patients, five patients had the indeterminate form of Chagas disease. Cardiomegaly was detected in 28 patients. The area under the ROC curve for LVEDD was 0.806 (95%CI: 0.692-0.919). The optimal cut-off for LVEDD was 60 mm (sensitivity = 64%, specificity = 89%). The use of LVEDD on echocardiography as a surrogate for CTR on chest X-ray changed the Rassi score values of 14 patients, with a reduction in the presumed risk in 10 of them. CONCLUSION: LVEDD on echocardiography is an appropriate, highly specific parameter to distinguish between the presence and absence of cardiomegaly on chest X-ray in Chagas disease. (Arq Bras Cardiol. 2021; 116(1):68-74).


Assuntos
Doença de Chagas , Ecocardiografia , Cardiomegalia/diagnóstico por imagem , Doença de Chagas/diagnóstico por imagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Raios X
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