[The place of echography compared to endoscopic methods in gastroenterology].
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Biliary Tract Diseases↗
Biomedical subjects
N Heyder
Publications and source records attributed to N Heyder.
Endoscopic ultrasonography--technique, orientation and diagnostic possibilities.
40 patients were examined by peroral endoscopic ultrasonography with two new prototypes (Prototype II and III, Olympus Optical Co., Tokyo, Japan). Indications were various intestinal diseases. Topographical orientation was facilitated by standard positions of the instrument. The organs identified included liver, gall bladder, common bile duct, pancreas, spleen and kidneys. Pathological lesions of the organs mentioned were characterized by the echo pattern known from external ultrasonography. At present endoscopic ultrasonography is not a routine method but may provide additional information to peroral endoscopy and external ultrasonography without replacing these methods.
Adult↗
Splenic abscess-clinical symptoms and diagnostic possibilities.
A 71-yr-old female patient was admitted for investigation of a massive leukocytosis and loss of weight. Physical examination revealed a reduction in the respiratory excursion of the left lung, a left pleural friction rub located ventrobasally and tension of the upper abdominal wall. Additional diagnostic procedure excluded extrasplenic disease. Ultrasound-guided puncture demonstrated the presence of pus in the splenic bed, and splenic abscess was diagnosed. Subsequent surgery confirmed this diagnosis. Histological findings revealed extensive splenic infarction. Since bacteriological investigation revealed the identical pathogens in the pus obtained with the puncture needle, in the intraoperative swab and in the midstream urine, the splenic abscess was most likely caused by hematogenous spread of a urinary tract infection into the splenic infarction. The postoperative course was uneventful, and the patient was discharged on the 11th postoperative day, free of symptoms. The clinical picture, radiological diagnosis, origin, therapy and course of splenic abscess are discussed with reference to the literature.
Abscess↗
[Diagnostic value of sonography (B-scan) in the upper abdominal region].
Minimal risk, easy applicability and high efficiency of ultrasonography, makes this method a valuable screening procedure in upper abdominal diagnostics. Case history, physical examination and laboratory diagnostics should be followed by ultrasound procedures as the first directed examination. This review intends to evaluate the efficacy of ultrasonography in different gastroenterological, oncological, hematological and angiological diseases of the upper abdomen.
Aortic Aneurysm↗
[The influence of testerone-propionate on the proliferation of the seminal vesicles epithelium in castrated rats (author's transl)].
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Animals↗
Ultrasound findings in Crohn's disease and ulcerative colitis: a prospective study.
In a prospective study, 118 patients with Crohn's disease, 51 patients with ulcerative colitis, and 72 patients with no disease of the intestine proximal to the rectum were evaluated by ultrasound. In Crohn's disease, thickening of the bowel wall and inflammatory masses were detected in 72.0% of the patients. With a transducer having optimal imaging properties in the near range, these findings were detected in 87.2% of a group of 47 patients. In ulcerative colitis, bowel wall thickening was detected in 52.9% of all patients. Thickening of the bowel wall was more marked in Crohn's disease than in ulcerative colitis. Most pathologic findings in Crohn's disease were located in the right lower abdomen, whereas those in ulcerative colitis were in the left abdomen, in particular in the lower quadrant. The frequency of wall thickening was correlated to the activity of the disease in ulcerative colitis but not in Crohn's disease. Considerably increased wall thickness, when localized in the right lower quadrant and found in combination with inflammatory masses or an abscess, suggests Crohn's disease.
Adolescent↗
Transgastric ultrasonography of the pancreas.
This is a report of initial experience gained with the transgastric diagnostic examination of the pancreas in a total of 80 patients. The examinations were carried out with two different instruments. One of the two fiberscopes carries on its tip a mechanical sector scanner, the scan plane of which is angulated through 90 degrees vis-a-vis the longitudinal axis of the instrument. The other ultrasonic endoscope is provided with an ultrasonic linear array assembly arranged along the longitudinal axis of the instrument. The sonic frequency is 7 and 7.5 MHz, respectively, so that the quality of resolution obtained is equal to that of a "small parts" scanner. Intubation of the stomach is readily possible with either instrument. In contrast, owing to the relatively long flexible tip of the instrument, intubation of the duodenum proved impossible in about one quarter of the patients, in particular when the duodenum was deformed by scar tissue. The topographic-anatomic orientation proved difficult, in particular since the scan planes are strictly determined by the position of the endoscope. A systematic examination of the pancreas in two planes is, as a result, virtually impossible. All in all, therefore, the technique must be considered merely as a supplementary procedure to external diagnostic ultrasonography. Thanks to its superior resolution, and the avoidance of such obstacles as "bowel gas", however, it is capable, as a supplementary examination, of providing additional diagnostic information about lesions of the pancreas.
Endoscopy↗