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Biomedical subjects

D Lardé

Publications and source records attributed to D Lardé.

33 records · Page 2Linked to original sources
PubMed1982

[Computed tomography diagnosis of anomalies of aortic arch of the adult (author's transl)].

Seven cases of anomalies of aortic arch investigated by computed tomography are described. The authors emphasized the interest of such an exam in the investigation of these anomalies. It is very interesting to know this pathology in sight to obviate some mistakes in the diagnostic of the tumors of the mediastinum. They describe three specific criterions of CT diagnosis of a right aberrant subclavian artery. The indications of computed tomography in the diagnostic and evaluation of the anomalies of aortic arch are discussed.

Adult↗
PubMed1981

[Left coronary artery arising from the pulmonary artery : a report on two cases of this anomaly in adults (author's transl)].

The presence of an abnormal origin of the left coronary artery from the pulmonary artery was observed in two adults. The clinical, radiological, and hemodynamic characteristics of this disorder are described. The author emphasizes the value of exploring these malformations by means of a strict technique, including the injection of a large quantity of contrast medium.

Adult↗
PubMed1981

[Value of the transscapular view in radiological of shoulder trauma (author's transl)].

With a one year experience concerning 67 patients, the authors suggest to use for any shoulder trauma, a transscapular view associated with the routine antero postereiur film of the shoulder. This incidence has a major advantage on all the other lateral positions to be always possible at the exclusion of severely polytraumatised patients. Luxations of the shoulder, humerus and scapula fractures and lesions of acromio clavicular joints are quite correctly visualized.

Acromioclavicular Joint↗
PubMed1981

[Contribution of scanning to the diagnosis and evaluation of acquired anomalies of the aorta (author's transl)].

Acquired anomalies of the aorta represent at the present time an excellent indication for scanning in vascular diseases. This form of examination permits perfect visualization of aneurysms, wherever they are located, frequently enabling a tumour in the vicinity of the aorta to be eliminated. It provides an exact topographic picture of the lesions with a quantitative indication of their height. The detection of a peri-aortic hematoma facilitates the diagnosis of cracking of the aneurysm. Scanning has a far from negligible contribution to make to the diagnosis of aortic dissections. The visualization of intraluminal calcifications at a distance from the wall, of a floating membrane or a false channel provides confirmation of the diagnosis and suggests the possibility of an angiography. As an additional bonus in the case of acute ischaemia of the lower limbs, scanning permits an easy and inexpensive diagnosis of a complete thrombosis of the aorta and an indication of its extent. Computerised scanning as a non-invasive and easily repeated examination, has numerous and widely varying indications in the pathology of the aorta. Its potential contribution in certain cases appears to be so great as to envisage its delaying angiography.

Aneurysm↗
PubMed1980

Computed tomography diagnosis of renal angiomyolipoma.

Six computed tomography examinations were performed on four patients: two of them had tuberous sclerosis, and the other two had solitary angiomyolipomas. Computed tomography is an easy way of diagnosing tumoral hemorrhages and thus facilitates the supervision of patients with tuberous sclerosis. In two patients, the authors observed dense masses that might have indicated cartilage deposits.

Adult↗
PubMed1980

Computed tomography of aortic dissection.

Fourteen patients suspected of having dissection of the thoracic aorta, two with possible extensions into the abdomen of previously diagnosed dissection of the thoracic aorta, and one patient who had undergone surgical repair of an aortic dissection were examined by CT (computed tomography). Findings included localized increase of the aortic caliber, displaced intimal calcifications, intimal flaps, and false channels. These findings were confirmed by angiography or at necropsy. Two patients in whom CT showed no abnormalities had a favorable outcome. The authors conclude that CT is the examination of choice in removing doubt from the clinical diagnosis of aortic dissection.

Aortic Dissection↗
PubMed1975

[Anatomo-radiological study of the spinal venous system of the lumbo-sacral junction].

Transfemoral ascending lumbar catheterization of the epidural veins is a new radiological method in lumbar disk disease. The technique and interpretation of the venogram offer some problems: Origin of ascending lumbar vein and internal vertebral venous structures are variable. The authors use 11 corrosion preparations and 18 venograms for the study of the ascending lumbar vein and internal vertebral venous system.

Humans↗
PubMedDate not supplied

Evaluation of liver iron content by computed tomography: its value in the follow-up of treatment in patients with idiopathic hemochromatosis.

The therapeutic management of patients with idiopathic hemochromatosis (IH) implies the evaluation of excess hepatic iron. This work was undertaken to confirm the value of computed tomography for the assessment of liver iron overload in such patients and to evaluate this technique during the course of treatment by phlebotomy. The study included 24 patients with initially untreated IH and 7 patients previously treated by phlebotomy for 10 months to 7 years. Follow-up was obtained in 15 subjects. In patients with untreated IH, liver attenuation coefficient (LAC) was always markedly increased (92.4 +/- 7.1 Hounsfield units) as compared with LAC of subjects with normal liver (60.2 +/- 3.1 Hounsfield units) and that of patients with chronic liver disease (53.8 +/- 4.8 Hounsfield units), and was found to be specific for liver iron overload. LAC decreased progressively during phlebotomy, and this diminution was correlated with the amount of mobilized iron (r = 0.79, p less than 0.001); it returned to normal values only after complete removal of iron overload. LAC was closely correlated with liver iron concentration (r = 0.83, p less than 0.001), better than usual biochemical parameters, especially serum ferritin (r = 0.70, p less than 0.01). This study confirms that the determination of LAC on computed tomography provides a reliable index of hepatic iron stores in patients with IH, without requiring a liver biopsy, and shows that this noninvasive method is of particular interest for the follow-up of patients treated by phlebotomy.

Adult↗
PubMedDate not supplied

[Contribution of computed tomography to the exploration of congenital anomalies of the inferior vena cava. A report on five cases (author's transl)].

3 cases of abnormalities of the inferior vena cava are reported: one isolated left inferior vena cava, one duplication of the inferior vena cava with continuation by a left inferior hemi-azygos vein and a simple duplication of the post-renal inferior vena cava. Finally, 2 cases of retro-aortic left renal vein are described. These abnormalities may be fully studied by computed tomography which in certain cases makes it possible to avoid inferior cavography. The authors emphasize potential sources of error in interpretation and the value of being aware of the congenital malformation of the inferior vena cava.

Female↗
PubMedDate not supplied

[Radiological appearance of bone manifestations in acute drepanocytic syndromes in adults (author's transl)].

The authors describe 18 cases of this syndrome and emphasize that attenuated clinical forms of homozygotic drepanocytosis exist, as well as, in a more general manner, in acute drepanocytic syndromes. The disease may first appear in adult life. The frequency of radiological signs in the spine has to be stressed, and the authors emphasize the diagnostic value of the "staircase" deformation of the vertebrae, representing the sequelae of bone ischemic lesions. The discovery of this radiological sign suggested the diagnosis of a hemoglobinopathy in two cases. This attenuated form of the disease presents the same risks of thromboses but these complications can be reduced by prophylactic treatment. This underlines the need for early detection and radiological investigation can be of great assistance.

Adolescent↗
PubMedDate not supplied

[Value of computed tomography for the investigation and diagnosis of aortic aneurysms (author's transl)].

Abdominal or thoracic aneurysms can be perfectly well visualized by computed tomography, and tumors lying close to the aorta and simulating ectasia can often be eliminated. The exact topographical features of the lesions can be defined as well as their extension superiorly. In many cases, calcifications, clots, a permeable channel, or even a periaortic hematoma showing fissuration can be demonstrated. On many occasions the value of computed tomography is such that angiography may not be necessary.

Adult↗