[Imaging of acute urinary infections in adults. Radiologic findings and strategy for imaging procedures].

Urinary infection is very common in women. Generally no imaging is needed. The role of imaging is mandatory in the following cases: renal infection, urinary obstructive syndrome, immuno-compromised patients.

[Evaluation of radiological medical practice at a hospital during night duty].

Purpose: To evaluate the radiological activity during night duty, in a University Hospital. Materials and methods. During 100 days, the radiological activity has been evaluated from examinations requiring radiologist (including US and CT, special X-ray examinations).

Intraluminal duodenal diverticulum: radiological and endoscopic ultrasonography findings of an unusual cause of acute pancreatitis.

Intraluminal duodenal diverticulum is a rare congenital web of membrane which may be symptomatic when it becomes distended. This report describes a case revealed by presenting as an acute pancreatitis. The radiological findings are reported.

Performance characteristics of magnetic resonance cholangiography in the staging of malignant hilar strictures.

Background: Magnetic resonance cholangiography (MRC) is currently under investigation for non-invasive biliary tract imaging.

Aim: To compare MRC with endoscopic retrograde cholangiography (ERC) for pretreatment evaluation of malignant hilar obstruction.

Methods: Twenty patients (11 men, nine women; median age 74 years) referred for endoscopic palliation of a hilar obstruction were included.

[Emphysematous pyelonephritis: apropos of 4 cases].

Purpose: The propose of this study was to describe the imaging findings in four patients with emphysematous pyelonephritis and to perform a review of the literature.

Material And Methods: Four cases of emphysematous pyelonephritis are presented. US and CT examinations were available for all patients.

Cystic fibrosis in adolescents and adults: fatty replacement of the pancreas--CT evaluation and functional correlation.

Purpose: To compare the computed tomographic (CT) features of pancreatic fatty replacement in adolescents and adults with cystic fibrosis (CF) with those in control subjects and to correlate the degree of fatty replacement with the functional status of the pancreas.

Materials And Methods: CT scans in 15 patients with CF (group 1) and in 15 control subjects without CF (group 2) were evaluated for thickness and degree of pancreatic fatty replacement. Thickness was measured at four anatomic levels.

Use of magnetic resonance cholangiography in the diagnosis of choledocholithiasis: prospective comparison with a reference imaging method.

Background: Magnetic resonance cholangiography (MRC) is a new technique for non-invasive imaging of the biliary tract.

Aim: To assess the results of MRC in patients with suspected bile duct stones as compared with those obtained with reference imaging methods.

Patients/methods: 70 patients (34 men and 36 women, mean (SD) age 71 (15.

[MRI cholangiography with rapid spin-echo technique: prospective evaluation of 20 patients].

Purpose: To evaluate a MR cholangiographic technique using a non breath-hold fast spin-echo technique in patients with suspected bile duct obstruction.

Material And Methods: Twenty patients with suspected bile duct obstruction were prospectively investigated with MR cholangiography using a T2-weighted non breath-hold fast spin-echo technique (TR = 8000-9000 mse, effective TE = 120-266 msec, ETL = 16-32, acquisition time = 1-3 min) with a body coil. Results of MR cholangiography were compared to those obtained with endoscopic retrograde cholangiography (n = 20 patients) and endoscopic sonography (n = 12 patients) that were considered as reference.

Nontumorous hepatic pseudolesion around the falciform ligament: prevalence on gadolinium chelate-enhanced MR examination.

Objective: Our objective was to determine the prevalence of nontumorous hepatic pseudolesions seen around the falciform ligament on dynamic spoiled three-dimensional (3D) gradient-recalled echo (GRE) MR imaging obtained during i.v. injection of a gadolinium chelate.

T1-weighted spoiled gradient-echo MR imaging of focal hepatic lesion: comparison of in-phase vs opposed-phase pulse sequence.

The goal of our prospective study was to compare quantitatively and qualitatively in-phase and opposed-phase T1-weighted breath-hold spoiled gradient-recalled-echo (GRE) MR imaging technique for imaging focal hepatic lesion. Thirty-eight patients with 53 focal hepatic lesions had in-phase (TR = 12.3 ms, TE = 4.

Non-breath-hold fast spin-echo versus breath-hold fast spin-echo and spoiled gradient-recalled echo MR imaging in the detection of hepatic tumors: correlation with surgical findings.

Objective: Our objective was to compare the sensitivity of non-breath-hold T2-weighted fast spin-echo with and without fat suppression, breath-hold T2-weighted fast spin-echo without fat suppression, and spoiled gradient-recalled echo (GRE) MR imaging for detecting hepatic tumors using surgical findings as the standard of reference.

Subjects And Methods: Eighteen patients with 36 surgically proven hepatic tumors had non-breath-hold T2-weighted fast spin-echo (6000/117 [TR/effective TE; echo train length, 16) MR imaging with and without fat suppression, breath-hold T2-weighted fast spin-echo MR imaging (2700/105; echo train length, 20), and spoiled GRE images (10.1/1.

Is immunochemical determination of haptoglobin phenotype dependent?

Immunochemical methods have been used to determine the concentration of haptoglobins. The dependence on the phenotype was tested with highly purified Hp 2-1, Hp 2-2 and Hp 1-1, by immunonephelometry and radial immunodiffusion (RID). Measurements with three different instruments: automated immunonephelometer (AIP, Technicon), laser nephelometer (LN, Behring) and immunochemistry system (ICS, Beckman) were performed.

[Immunochemical determination of human hemoglobin in biological fluids (author's transl)].

An assay of human hemoglobin by immunonephelometry-electroimmunodiffusion is proposed. Concentrations in the range from 5 to 180 mg% can be determined to within 2--5% accuracy. The immunonephelometric assay is independent of the presence of haptoglobin whereas the electroimmunodiffusion assay is not.

[Intravascular hemolysis. Assessment by determination of haptoglobin, hemopexin and orosomucoid].

In 100 patients suffering from intravascular haemolysis, a "protein profile" was made on the basis of measurement of haptoglobin, haemopexin and orosomucoid. The estimations were carried out using a rapid precise automatic technique using monospecific immune serum. The results obtained indicate that these tests are sensitive and reliable.