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Biomedical subjects

F Brunelle

Publications and source records attributed to F Brunelle.

At least 145 records · Page 8Linked to original sources
PubMed1989

[X-ray computed tomography coupled with cisternography in chronic pericerebral effusions in young children].

The authors study 26 children with macrocranium and pericerebral effusion as diagnosed by C.T. Three groups are described: 10 with the classical C.T. features of subdural effusion, 12 with features of external hydrocephalus and 4 with massive pericerebral effusion. C.T. performed after lumbar subarachnoid injection of contrast medium, shows that all the effusions are subdural. In only one case, opacification of the subdural space occurred. The authors conclude that plain C.T. alone is unable to demonstrate the precise localization of pericerebral effusion in children and that all these effusions are, in their experience, subdural in localization.

Chronic Disease↗
PubMed1988

The calculation of intracranial volume using CT scans.

A method of calculating intracranial volume from horizontal computerized tomography scan slices is presented. The accuracy of this technique was confirmed by applying it to 10 dry skulls and comparing the values obtained with the true intracranial volumes, as determined by filling the skulls with water. Values ranging between 98.14% and 102.6% of the true values were obtained, the mean error being 1.13%. This technique is now being used to study intracranial volume changes in children with craniostenosis.

Adult↗
PubMed1988

MRI of hypothalamic hamartomas in children.

Eight cases of hypothalamic hamartomas (HH) diagnosed in children by clinical, biological and CT studies have been explored by MRI and compared with a control group of twenty children without hypothalamohypophyseal signs. MRI revealed the hamartoma in all cases. Its location and position relative to the floor of the third ventricle was precisely determined. The signal intensity of the lesion was identical to that of normal grey matter on T1-weighted images (300/600.28), but an hyperintense signal was observed over T2-weighted images (1800.60/120) in seven of the eight cases. These data suggest that HH are somewhat different in structure from normal brain tissue. MRI variations in signal intensity should be taken into account in the diagnostic work-up of these lesions.

Child↗
PubMed1988

Computerised tomography in the evaluation of expansile lesions arising from the skull vault in childhood--a report of 5 cases.

Expansile lesions of the skull vault are rare in childhood, and often present as relatively asymptomatic calvarial swellings. The cases of 5 children with expansile lesions of the skull vault due to both benign and malignant primary bone lesions are described. The value of computerised tomography in demonstrating that the "tumour" arises primarily from the skull vault as opposed to the underlying brain, and in demonstrating clinically unsuspected endocranial extension of the mass is described. The CT findings in 2 cases of aneurysmal bone cyst, including the significance of the presence of "fluid levels" in reaching a definitive diagnosis are discussed. The successful pre-operative embolisation in one case of aneurysmal bone cyst is reported.

Adolescent↗
PubMed1988

Budd-Chiari syndrome in children: report of 22 cases.

Clinical, radiologic, and histologic features in 22 children with Budd-Chiari syndrome are reported. Three children had acute refractory ascites; all the others had hepatomegaly, which was detected either fortuitously or because of abdominal pain or distention. Results of liver function tests were normal or only moderately abnormal. In most cases a combination of ultrasonography and needle liver biopsy pointed to the diagnosis of Budd-Chiari syndrome, which was confirmed by angiography. Eighteen children underwent surgery involving various techniques, depending on the degree of patency of the inferior vena cava. Five children died postoperatively. Histologic studies of the liver, carried out in 12 of the surviving children, showed disappearance or regression of centrilobular hemorrhagic infiltration. Half of the surviving surgical patients are now free of complications after a follow-up of 7 months to 7 years; the others have either secondary thrombosis of the inferior vena cava or stenosis of the shunt or have experienced late pulmonary complications. Our results suggest that (1) Budd-Chiari syndrome must be considered a possible diagnosis in children with firm hepatomegaly and normal or near normal liver function, (2) surgery provides good results in many instances, and (3) the possibility of late complications requires careful follow-up.

Budd-Chiari Syndrome↗
PubMed1988

[The imaging of organ transplants in children].

Imaging plays a major role in organ transplantation. It allows to show or to rule out numerous complications whose clinical and biologic picture is often little specific. Due to the fragility of these immunodepressed children, ultrasonography performed at the patient's bed side, is a irreplaceable supervision tool. Its association to pulsed Doppler was recently an important contribution to the diagnosis of hepatic and renal vascular lesions. The techniques of investigation which require the patient transport and anesthesia are performed only by second intention. The place of interventional radiology, especially in the treatment of hepatic and renal complications, should be emphasized.

Child↗
PubMed1988

[MRI of aortic arch anomalies in children. Initial results].

A prospective study by nuclear magnetic resonance in 7 infants with respiratory disorders and with a barium swallow suggestive of anomalies of the aortic arch was conducted. It allowed the definition of an investigation protocol including sedation, RF coil adapted to infants size, naso-gastric tube placement, thin MR sections. Sequences are T1 weighted with ECG gating in two perpendicular frontal oblique and transverse oblique planes determined on a scout sagittal MR acquisition. Precise determination of the anatomy of the vascular malformation and its relationship with the trachea and esophagus were obtained. After definition of the investigation protocol, MRI was found to be a very effective evaluation technique for aortic arch anomalies. It can be proposed as an alternative to preoperative digital angiography. Its indications remain to be defined in relation to the clinical features and the results of the chest X-ray and barium swallow.

Aorta, Thoracic↗
PubMed1988

[Cystic or pseudocystic ovarian masses in young girls. The role of ultrasonic diagnosis].

Twenty adnexal tumors have been discovered between 7 and 16 years old girls. With few exceptions, the sonographic appearance in nonspecific. They were grouped in four categories: teratomas, cystadenomas, adnexal torsions, polycystic diseases. Surgery with be discussed upon consideration of age, clinical signs and sonography, and diagnostic emergency will be emphasized in case of acute adnexal torsion.

Adnexal Diseases↗
PubMed1988

[Neonatal ovarian cysts. The role of ultrasonic diagnosis].

Nine cases of adnexal cysts diagnosed by antenatal ultrasonography, have been followed after birth and operated upon. Simple ovarian cysts as well as old adnexal torsions appear as sonolucent masses. Acute adnexal torsion appears as mixed or solid masse. Sonographic appearance can help the post natal management of these masses.

Adnexal Diseases↗
PubMed1987

Bilio-pancreatic common channel in children. Clinical, biological and radiological findings in 12 children.

Twelve patients (11 girls and 1 boy) with dilated bile ducts and anomalous junction between the common bile duct and pancreatic duct are reported. All patients underwent preoperative opacification of the bile ducts either by transhepatic cholangiography or percutaneous cholecystography. Abdominal pain and jaundice were the main clinical symptoms. Reflux of pancreatic enzymes in the bile duct was proven by measuring amylase and lipase activity in the biliary system after IV injection of 1 IU/kg of cholecystokinin. All patients were operated upon. Bile ducts size returned to normal in all patients who are clinical well with a follow-up from 1 to 6 years.

Adolescent↗
PubMed1987

Sclerosing cholangitis with neonatal onset.

Sclerosing cholangitis is characterized by irregular narrowing of extrahepatic or intrahepatic bile ducts, and in adults is defined mainly by radiologic findings. We describe eight children with cholestasis from the first week of life, followed by early cirrhosis and portal hypertension. Histologic examination of the liver showed absence of interlobular bile ducts in the early cholestatic phase in two patients and biliary cirrhosis later in all patients. Radiologic examination by percutaneous cholecystography under ultrasound guidance, carried out at age 8 months to 9 years, disclosed abnormal intrahepatic bile ducts with rarefaction of segmental branches, stenosis, and focal dilation. The extrahepatic ducts were involved in six patients. No intestinal disease has been found in these patients.

Bile Ducts↗
PubMed1987

[Diffuse mediastinal, retroperitoneal and hepatic neurofibromatosis in 4-year-old child. Value of puncture biopsy guided by computerized tomography].

A case of neurofibromatosis in a 4 year-old girl is reported. Extensive localization to mediastinum, retroperitoneal space and liver is particularly infrequent. Histological diagnosis was obtained through a needle biopsy of the retroperitoneal space and the liver under the control of CT scan X-ray. Prognosis seems to be related to the tracheal compression.

Biopsy, Needle↗
PubMed1986

Sonography of the normal and abnormal stomach (excluding hypertrophic pyloric stenosis in children.

Prospective sonographic evaluation after water ingestion in 25 normal children aged 2 days to 15 years (mean 6.3 years) demonstrated that normal gastric wall thickness was less than 3 mm. Gastric walls of 5-15 mm thickness were seen in nine of about 6500 children undergoing abdominal sonographic examinations. These nine patients had a variety of unusual diseases, including varioliform gastritis, gastric ulcer, lymphoid hyperplasia, and gastric hamartoma. Previously unreported sonographic appearances were seen. The sonographic examination was instrumental in the detection of five clinically unsuspected gastric lesions and helpful in follow-up in four others.

Adolescent↗