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Biomedical subjects

G Le Clech

Publications and source records attributed to G Le Clech.

At least 37 records · Page 2Linked to original sources
PubMed1986

[Magnetic resonance imaging of craniofacial pathology].

Effectiveness of nuclear magnetic resonance imaging (MRI) was compared with that of the CT scan in several cases involving different lesions: intracranial, base of skull, facial sinuses, parapharyngeal spaces. MRI provided excellent contrast in soft tissues with good detection of tumors and their limits, the condition of neighboring tissues and any local or regional tumor extension. Vessels were also visualized. It was not influenced by dental artefacts, and allowed three-dimensional sections to be obtained simply without manipulation of patients. In contrast, bone structures were analyzed less clearly than by the CT scan. Marked progress in MRI technical features and results obtained can be expected in the very near future.

Glomus Tumor↗
PubMed1985

[Congenital esophagotracheal fistulas without esophageal atresia in children].

Ten cases are reported of children presenting isolated, congenital esophagotracheal fistulae without esophageal atresia, or "H-type-fistula" of Anglo-Saxon authors. The malformation is rare, of difficult diagnosis and often associated with other malformations. Respiratory symptomatology is sometimes dramatic, but diagnosis is based on data from radiologic imaging of the esophagus and from esophageal and tracheobronchial endoscopy. Treatment is surgical by a cervicotomy approach due to the almost constant high localization of the lesion.

Abnormalities, Multiple↗
PubMed1982

Evaluation of human thyroid tumors by proton nuclear magnetic resonance.

Proton nuclear magnetic resonance (NMR) was used in a study of 40 patients with thyroid tumors following partial or total thyroidectomy. Three patient groups were considered: those with nodules showing increased uptake, those with solitary nodules with decreased uptake, and those with multinodular goiters. Spin-lattice and spin-spin relaxation times (T1 and T2) were measured on samples of nodular and extranodular tissue from each patient. Increased T1 and T2 were observed for benign cold nodules, an increase in T1 alone for nodules with increased uptake, and a wide fluctuation in T1 and T2 for multinodular goiters. The four cancers in the series did not show a distinctive proton NMR pattern in comparison with the other nodular structures studied. The results point to the feasibility of applying NMR techniques to the detection of thyroid disease.

Carcinoma, Papillary↗