Annedore Scholz

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We used dynamic CT to identify two different time constants of lung aeration and their individual contribution to the total increase in cross-sectional lung area in healthy and experimentally damaged lungs. In five healthy pigs, inflation and deflation between 0 and 50 cm H2O was imposed during dynamic (250 ms/image) CT acquisition, and repeated after(More)
Our study includes 15 posttransplant angiographies in 10 patients after liver transplantation and 3 cases with embolisation of the splenic artery because of a splenohepatic steal syndrome. The results of the angiographies are demonstrated and discussed. In cases with non-conclusive ultrasound or CT findings, angiography is the method of choice, if an(More)
Our study covers angiographic pretransplant evaluation from 9/88-4/90. 57 out of 73 patients (78%) underwent pretransplant angiography. In all cases aortography, angiographies of the coeliac axis, the superior mesenteric artery, the splenic artery, and portograms were obtained. The arterial studies evaluated the arterial blood supply of the liver, the(More)
BACKGROUND AND OBJECTIVE This prospective observational study analyses cardiovascular changes in adult patients with acute respiratory distress syndrome (ARDS) during transition from pressure-controlled ventilation to high-frequency oscillatory ventilation (HFOV), using transoesophageal echocardiography (TOE) and invasive haemodynamic monitoring. METHODS(More)
To enhance the ability of prostate-specific antigen (PSA) to distinguish benign prostatic hyperplasia (BPH) from cancer of the prostate (CaP) Benson et al. defined a new parameter, PSA density (PSAD), which is the ratio of the serum PSA concentration to the volume of the prostate. We have employed this parameter in a prospective study of 28 patients with(More)
The purpose of this first patient study (phase II) was to evaluate the clinical usefulness of a new echo contrast agent at transcranial Doppler ultrasonography (US). Twenty patients were selected from a group of 242 patients undergoing conventional transcranial Doppler US who had low (n = 18) or absent (n = 2) Doppler signals from the middle cerebral artery(More)
This study examines whether an increase in renal perfusion pressure (RPP) is necessary to escape endogenously stimulated Na- and water-retaining mechanisms. In seven dogs stimulation was accomplished by a servo-controlled reduction of RPP (rRPP) below the threshold for pressure-dependent renin release for 4 days. Oral intake was standardized. Plasma renin(More)
The study describes new pathologic entities, the splenohepatic steal-syndrome and the gastroduodenal steal-syndrome, which could be demonstrated by angiography in 17 patients before and after liver transplantation. After the first observation of a splenohepatic steal-syndrome in a patient with unexplained elevation of hepatic enzymes after liver(More)
A new method for dynamic imaging of pulmonary wash-in and wash-out kinetics of inhaled sulfur hexafluoride (SF(6)) gas was developed. Measurements at the fluorine-19 Larmor frequency were performed in pigs using a gradient echo pulse sequence with 0.5 ms echo time and a measurement time of 9.1 s per image. Dynamic MRI was performed during wash-in and(More)
BACKGROUND This study observed adverse events of rescue treatment with high-frequency oscillatory ventilation (HFOV) in head-injured patients with acute respiratory distress syndrome (ARDS). METHODS Data of five male patients with ARDS and traumatic brain injury, median age 28 years, who failed to respond to conventional pressure-controlled ventilation(More)