Search PubMed⌕ Search

Biomedical subjects

A Sacrez

Publications and source records attributed to A Sacrez.

At least 109 records · Page 6Linked to original sources
PubMed1976

[Leiomyosarcoma of the left side of the heart with a mitral symptomatology. Echocardiographic study].

A patient presented with the clinical findings of mitral stenosis, and angiocardiography revealed an intracardiac tumour. It was found at surgery to be a leiomyosarcoma, occupying almost the whole of the left auricle, and infiltrating the inter-atrial septum, the atrio-ventricular ring at the posterior commissure, and the posterior surface of the left ventricle. A mass with three lobes and a pedicle attaching it to the posterior wall and the ring of the mitral valve was found within the cavity of the left ventricle. The findings on echocardiography corresponded with the anatomical findings; but after surgery, ultrasonic investigation was found to be unreliable at detecting the unresected portion of the tumour, which was situated in the right postero-inferior region of the auricle of the left atrium.

Echocardiography↗
PubMedDate not supplied

Spin echo MRI in the evaluation of pericardial disease.

As in other pathological processes of the heart, the contribution of MRI is not limited to optimal anatomical evaluation but also offers functional or etiological information (approach of tissue characterization). In this work we report on our experience in evaluating normal and pathological pericardium with MRI spin echo sequences. The results with 41 patients, including pericardial effusion, thickening, and mass are discussed and confronted with previously reported data. Contrary to classical echocardiographic notions, pericardial effusions are more frequently in the anterior than posterior location (26/30 vs. 19/30 p less than 0.03). Not only does MRI provide a precise and positive diagnosis, but also a rather clear distinction appears in spin echo sequences between hemopericardium with high signal intensity and other effusions with lower signal (high intensity found in 6/6 patients with hemopericardium versus only 8/24 in the remaining group; p less than 0.01). When constriction signs are present, MRI solves the difficult differential diagnosis between pericardial thickening and restrictive cardiomyopathy. In paracardiac primary or metastatic tumors pericardial involvement is clearly demonstrated. Distinction between paracardiac, respectively pericardial cyst or false aneurysm is possible. We conclude that MRI is a new imaging method, complementary to echocardiography and/or computed tomography in the evaluation of pericardial pathology especially when hemopericardium, constrictive pericarditis, or tumoral etiologies are suspected. Important technological improvements are needed to solve the problem of long acquisition time and to improve the possibilities of tissue discrimination.

Aged↗
PubMedDate not supplied

Detection and quantification of recent myocardial infarction: diagnostic value of multiecho multislice spin echo imaging.

Thirty-four patients with documented transmural MI were studied with gated three echo, multislice MR imaging. In 12 patients MRI MI size was compared with CK release measurement, Tl-201 SPECT defect, and with Tc-99m LVEF. Infarct was visualised in 29/34 patients on 3rd echo images (18/34 on 2nd and 6/34 on 1st echo images). Mean MR infarct size (planimetered from 3rd echo images): 33.1 +/- 9% overestimated the SPECT defect (mean value of 23.8 +/- 15%). However, the overall correlation between MRI and Tl-201 sizing was significant: r = 0.82; p less than 0.001; SEE = 5.5%. The correlation with LVEF also appeared significant: r = -0.61; p less than 0.038.

Adult↗
PubMedDate not supplied

[Value of global ejection fractions based on the presence or absence of left ventricular dyskinesia. A comparison between contrast angiography and angioscintigraphy].

The total ejection fraction of the left ventricle is studied in 37 patients, most of them with coronary disease, according to two methods: contrast angiography in a single plane and angioscintigraphy (first passage and balanced), in order to compare the results according to the presence or the absence of dyskinesias. The two methods are performed in succession according to the usual views. The population is divided in two sub-groups according to the presence (17 patients) or the absence (20 patients) of segmental abnormalities. Segmental abnormalities are divided into 11 antero-apical aneurysms and 6 infero-posterior aneurysms. The correlations of the ejection fractions calculated according to the two methods and the two views, are usually satisfactory in the two sub-groups and especially as the parietal kinetics is homogeneous. In case of segmental abnormalities of the contraction, there are variations in the total ejection fractions depending on the technique and the views that are used, but the differences are not significant.

Arrhythmias, Cardiac↗
PubMedDate not supplied

[Diagnostic elements of a right papyraceous ventricle. The value of nuclear magnetic resonance].

We are reporting the case of a young man presenting repeated syncopes linked to episodes of ventricular tachycardia. The rhythm disorders were due to the existence of a papyraceous right ventricle with concomitant involvement of the left ventricle disclosed during the etiological work-up. We are reporting, at this time, the usual diagnostic elements of this disease, but mostly original data provided by the nuclear magnetic resonance, as the clinical examination and the EKG are often less revealing except for late potentials always found in the arrhythmic form. The right, ventricular dysplasia and the papyraceous right ventricle represent two very close entities. Particular characteristics enable to differentiate them and also the differential diagnosis with other diseases are discussed by stressing the advantage of magnetic resonance imaging, a new method, non invasive, which lends itself well to the analysis of cardiac morphology.

Adult↗