Biomedical subjects
Publications and source records attributed to H G Reichelt.
The case of an elderly woman is reported, presenting with a bilateral-symmetrical occlusive disease of the subclavian-brachialis-axis in combination with Horton's arteriitis. Early intraarterial thrombolysis may be an appropriate first-line treatment to favourably influence complicated coagulation phenomena.
Radionuclide studies today can specify the actual state of gastrointestinal bleeding. "Radionuclide monitoring" characterises a method that allows a long-term surveillance of the patient for hours or even days (sequential scintigraphy). Labelling of the intravasal space is best met by in vivo/vitro labelling of the red blood cells with 99mTc, "Radionuclide monitoring" may positively influence current concepts of diagnosis or treatment control of patients suffering from gastrointestinal bleeding.
One benign and one malignant schwannoma of the stomach are presented. The gross appearance, degree of local invasion and the complications are demonstrated by double-contrast radiology technique and CT. Benign schwannomas can only be distinguished from the malignant ones on the basis of histological and immunohistochemical criteria.
Atypical radiologic and scintigraphic findings of a benign bone cyst in a 49-year old male are presented. The cyst is surrounded by a polygonal thick uneven sclerotic rim and shows radionuclide uptake.
Arthrography was performed in 563 cases of ankle injury to determine its diagnostic information. No complications occurred in our study. Experiences are described and indications for arthrography are pointed out. Stress radiography using a sophisticated apparatus and reproducible amounts of pressure does not have the diagnostic accuracy of arthrography. Arthrography of the ankle joint makes it possible to diagnose ligament rupture and classify injuries by negative stress radiography.
Radionuclide monitoring was done in 50 patients to assess gastrointestinal bleeding, activity and location. Monitoring with 99m-Tc-in vivo-labelled erythrocytes was performed as sequential scintigraphy in increments of 1-2 hours up to 62 hours. 23 patients without active GI bleeding were correctly identified. 27 patients showed pathologic activities in abdominal blood-pool scintigraphy. In 25 patients peristaltic movement of these activities were seen--in each case we correctly diagnosed active GI bleeding. In 2 patients the activity stayed for a longer period in the same location--one patient had a liver hemangioma, the other patient had an aneurysm of the superior mesenteric artery. The great impact of radionuclide monitoring on diagnostic and therapeutic management of gastrointestinal bleeding is emphasized.
Clinical, radiographic and scintigraphic abnormalities in primary oxalosis of a 52 years old female are demonstrated. Severe oxalosis-nephropathy and oxalosis-arthropathy/enthesiopathy are shown. For the first time an intense myocardial uptake of 99 m Tc-HDP and 99 m Tc-MDP is described in connection with oxalosis. It is suggested that in the appropriate clinical setting this pattern may be suggestive of oxalosis-cardiomyopathy. Review of literature.
Forty-eight patients with failing arteriovenous dialysis fistulas were evaluated in an 18-month period. Forty-six of dialysis access fistulas were of the Brescia-Cimino type; two were fistulas in the upper forearm. PTA was technically feasible in twenty-three patients (44%). 54% dilatations with polyethylene balloons were initially successful and patent at 3 months; 43% were patent at 6 months; and 24% after more than 9 months. Two complications were encountered. PTA is recommended in Brescia-Cimino type dialysis fistulas, as the procedure prevents damage to the arterial and venous vessels suitable for a new fistula at the same forearm. The procedure may be performed on an outpatient basis.
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Loco-regional intra-arterial infusion chemotherapy is gaining momentum in modern tumor therapy. Cytostatica are delivered by an implantable system. Because of high tissue toxicity of chemotherapy functioning of the system must be assured and controls should be simple and reliable. The system implanted in 10 pat. with bladder-cancer (p T3 a-b) was checked by radiological and radionuclide diagnostic means before each chemotherapy. Both techniques proved valuable. Good and deficient functions are demonstrated.
Renal vein and inf. vena caval occlusion by neoplastic thrombus mediated by the ovarian vein from an occult uterine carcinoma is an extraordinary diagnosis. The special angiographic feature consists in demonstrating the renal venous drainage via vasa vasorum of the renal vein and inf. vena cava.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Cholescintigraphy (hepatobiliary sequential scintigraphy) with 99m Tc-marked IDA derivatives results in a specific identification of bile in free intraperitoneal fluids (bile ascites) or encapsulated intraperitoneal fluids (bilioma). To detect or exclude a biliary leak, cholescintigraphy was performed in 42 patients. In contrast to sonography and CT ("anatomical imaging"), which are capable of detecting an intraperitoneal accumulation of fluid with high sensitivity, cholescintigraphy ("functional imaging"), alone can help to identify the presence of bile in such fluids, both specifically and on a non-invasive basis. Modern gamma cameras are of such high sensitivity that they can identify even the most minute of activity (bile) quantities with satisfactory anatomic allocation.
Fractures of the femoral neck in elderly patients are often a complication in osteoporosis. Diagnosis of fractures with displacement and compression of fragments is quite easy. The negative radiograph in old patients complaining of hip pain is generally considered a characteristic feature of presenile osteoporotic pain. Clinical examples present patients with hip pain caused by occult injuries of the femoral neck. They should be regarded as imminent fractures and adequately treated. Bone scan is very helpful in the early detection of such occult osteoporotic injuries.
50 patients with complaints in the region of the sacroiliacal joints and the hip, but negative radiographs following injury to the pelvis were investigated by bone scan. Scintigraphic diagnosis always showed involvement of the pelvis ring other than the apparent fractures. Together with the clinical symptoms scintigraphic findings are interpreted as sacroiliacal strain or subluxation. Additional injuries to the acetabulum and to the lumbosacral joints may be present. The patients' complaints are explained, the injuries are localized and documented.