Oliver S Springer

Learn More
The aim of this study was to define the imaging characteristics of primary and recurrent gastrointestinal stromal tumors (GIST) in computed tomography with respect to the tumor size. Computed tomography was performed in 35 patients with histologically confirmed gastrointestinal stromal tumors and analyzed retrospectively by two experienced and independent(More)
We report a case of fibroepithelial polyp of the ureter with serial CT examinations. Progressive growth of the fibroepithelial polyp was documented by CT within a period of 62 months. Excretory phase contrast-enhanced CT images accurately contributed to the diagnosis of ureteral fibroepithelial polyp and allowed limited surgical resection. Accurate imaging(More)
PURPOSE The purpose of this work was to determine the frequency and etiology of the intravertebral vacuum phenomenon (IVP). METHOD CT examinations of 96 vertebral fractures were evaluated for IVP. Bone mineral density (BMD) was determined in nonfractured vertebrae. For calibration purposes, densities of a standard phantom measured in 30 patients who(More)
The purpose of this prospective study was to evaluate Whole Body-MRI as a screening tool for bone marrow imaging in patients with multiple myeloma and monoclonal gammopathy. 22 cancer patients at initial diagnosis underwent Whole Body-MRI and conventional radiography in order to detect bone and bone marrow abnormalities. MRI was performed using a(More)
PURPOSE Prospective evaluation of diagnostic accuracy of single field-of-view contrast-enhanced MR Angiography (ceMRA) with 1.0M gadobutrol compared to intraarterial DSA in body arteries. MATERIALS AND METHODS In an European multicenter study 179 patients underwent ceMRA and DSA. For each indication five prospectively defined vessel segments were(More)
Congenital funnel chest deformities (pectus excavatum) are a well known condition that may require surgical correction if repercussions on the respiratory and cardiac dynamics are caused by the compression on the mediastinal structures and by the reduction of the respiratory volume. However, the aesthetic defect may have serious psychological implications(More)
OBJECTIVE The aim of this study was to compare the diagnostic quality of paper prints with film copies in a sample of observers who were trying to detect small coin lesions on radiographs of a phantom. MATERIALS AND METHODS The phantom consisted of 60 high-contrast and 60 low-contrast test objects, half of which had holes in them. Diameter and depth of(More)
The aim was to define the diagnostic value of chest radiography, esophagography, and computed tomography (CT) in patients with Boerhaave's syndrome. CT findings in 14 patients (11 male, 3 female; mean age: 60 years; median age: 66 years; age range: 36–78 years) with spontaneous esophageal perforation were retrospectively reviewed and compared to those of(More)
Hemangiosarcomas are rare tumors of endothelial cell origin. To date, only 20 cases of hemangiosarcoma have been described after renal transplantation, occurring mostly in the skin or in a dialysis fistula. We report a primary metastasizing hemangiosarcoma arising from a renal allograft. The patient was treated with transplant nephrectomy, discontinuation(More)
RATIONALE AND OBJECTIVES To evaluate the detection rate of fine details of a new thin-film transistor (TFT) grayscale monitor designed for radiologic diagnosis, compared with a type of cathode ray tube (CRT) screen used routinely for diagnostic radiology. METHODS Fifteen radiographs of a statistical phantom presenting low- and high-contrast details were(More)
  • 1