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A 19-year-old female had recurrent bouts of pancreatitis. At endoscopy a mucosa-covered mass lesion was seen in the duodenum. A double-contrast examination of the stomach and duodenum showed an intraluminal duodenal diverticulum (IDD). Also an inversed abdominal situs and a midgut malrotation were noted. Computed tomography revealed evidence of a polysplenia syndrome. Although this syndrome is ass

Purpose: We investigated whether a low-field MR unit (0.2 T) could demonstrate and determine the size of the lymph nodes in the hepato-duodenal ligament that were previously found on ultrasound. Material and Methods: Eighteen patients were examined with ultrasound, MR and liver biopsy on consecutive days. Results: Two-thirds of the enlarged nodes detected by ultrasound were also detected with the

Background: The aim of this study was to investigate whether changes in lymph node size in the hepatoduodenal ligament reflect changes in biochemical and histologic markers of cholestasis, hepatocellular damage, and humoral immunoreactivity in patients with primary biliary cirrhosis (PBC). Methods: Twenty-three consecutive patients were examined with repeated liver biopsies, laboratory tests, and

Paper copies of digital radiographs printed with the continuous ink-jet technique have proved to be of a high enough quality for demonstration purposes. We present a study on the image quality of ink-jet printed paper copies of digital chest radiographs, based on receiver operating characteristic (ROC) analysis. Eighty-three digital radiographs of a chest phatom with simulated tumors in the medias

Purpose: Chest radiographs from 3 digital systems - 2 based on luminescent phosphors and one on selenium - and a conventional film-screen system were evaluated and compared. Material and Methods: Computed radiography (CR) has for the past years been dominated by a single manufacturer, but now several systems have been marketed. Using a chest phantom and, as test objects, 2 simulated tumours for th

Thirty-two consecutive patients with a histological diagnosis of chronic active hepatitis were examined with liver biopsy, laboratory tests and ultrasonography of the hepato-duodenal ligament to investigate the possible correlation between enlarged lymph nodes in the hepato-duodenal ligament and biochemical activity, histological activity and/or humoral immunoreactivity. We found a significant cor

With the introduction of picture and archiving communicating systems an alternative image display for the wards might be a personal computer (PC). the intention with this study was to evaluate the diagnostic image quality of the monitor of a PC compared to that of a workstation. Eighty-five digital radiographs of a chest phantom with simulated tumors in the mediastinum and right lung were saved on

Different digital medical images have been printed on paper with a continuous ink jet printer, and the quality has been evaluated. The emphasis has been on digital chest radiographs from a computed radiography system. The ink jet printing technique is described as well as the handling of the image data from image source to printer. Different versions of paper prints and viewing conditions were com

Thirty-five consecutive patients with primary biliary cirrhosis were examined using liver biopsy, laboratory tests and ultrasonography of the hepato-duodenal ligament to investigate the possible correlation between enlarged lymph nodes in the hepato-duodenal ligament and biochemical activity, histologic activity or stage and/or humoral immunoreactivity. We found a positive correlation between the

A retrospective review was performed of 11 patients referred to ultrasound examination because of abdominal pain and/or a palpable abdominal tumour, which eventually was proven to be gastrointestinal malignancy. Primary gastric carcinoma was present in 4 cases, carcinoma of the small bowel in one case, and of the large bowel in 6 cases. All the patients were examined with conventional ultrasound t

Myocardial 201Tl emission computed tomography was performed on 25 normal subjects and 27 patients with angiographically significant coronary artery disease. A semi-automatic computer program was designed to define the left ventricular myocardial volume in all short axis sections. Within this volume the relative mean myocardial pixel count was calculated. This parameter was found to separate the 2

Sixteen consecutive patients with myasthenia gravis were examined by computed tomography (CT) before thymectomy. Surgical and histologic findings were compared with those obtained at CT. The results, like those of most other recent studies, indicate that CT is a reliable method for identifying thymoma. In all three patients with thymoma, and in five out of eight patients with hyperplasia, the lesi

Pulmonary sarcoidosis was studied with respect to lung mechanical properties and to the influence of these on lung volumes. Sixty six patients, with histological support for the diagnosis of sarcoidosis, and radiological signs of pulmonary involvement, i.e. stage II or III, were studied. The static pressure/volume (P/V) curves showed that the static elastic recoil pressure (PelL) tended to be incr

Summary. The vectorcardiogram (VCG) is commonly stated to be more sensitive than the 12‐lead electrocardiogram (ECG) for the diagnosis of inferior myocardial infarction. However, a recent study indicated that VCG is not superior to ECG for this diagnosis. The purpose of this study was to compare the performance of VCG and ECG criteria and to indicate possible explanations for the disagreement betw

Electrocardiographic (ECG) criteria for the diagnosis of inferior myocardial infarction (IMI) have high specificity but low sensitivity. Vectorcardiographic IMI criteria attain higher sensitivity without sacrificing specificity. One approach to improving ECG interpretation is to synthesize VCG loops from the 12-lead ECG. The performance of synthesized VCG (SVCG) was assessed, using the Frank VCG c

Ninety-eight digital radiographs of a chest phantom with simulated tumors in the mediastinum and left lung and a pneumothoraxsimulation in the right hemithorax were compared with the corresponding examinations saved on optical disk and viewed on a 1000-line monitor. The examinations were reviewed by 7 radiologists with different experience, and receiver operating characteristic (ROC) curves were c

Ninety patients, found to have lymph nodes in the hepato-duodenal ligament (HDL) on ultrasound examination were reviewed over a one-year period in order to define the diseases in which such nodes can be found. The patients were divided into four main groups; benign liver disease (n = 31), malignant disease (n = 26), disease of the gallbladder or the biliary tree (n = 14) and a group with various b