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Biomedical subjects

L E Lampmann

Publications and source records attributed to L E Lampmann.

27 records · Page 2Linked to original sources
PubMed1986

Subtraction pitfalls in venous DSA of the renal arteries.

Venous DSA of the renal arteries was performed in 32 patients for suspected renovascular hypertension who were considered for percutaneous transluminal angioplasty (PTA). To trace the causes of contradictory or divergent findings in our material, v-DSA and conventional angiography prior to PTA were compared. Superimposition of dense bone structures on the origins of the renal arteries was the most common cause of different findings. In 22 arteries with superimposition, 11 were not the same (50%). In 42 arteries without superimposition 7 were not comparable (16.5%). The difference between both groups is statistically significant (chi square test: p less than 0.05). Other possible factors of influence such as motion artifacts, superimposition of vessels and calcifications in the region of the renal arteries, had no measurable effect. The importance and the origin of subtraction artifacts caused by dense bone structures are discussed.

Adult↗
PubMed1986

Graded compression sonography in acute appendicitis.

Acute appendicitis never was a radiologically established diagnosis. A study on sonography in acute appendicitis was published recently in which in 89% of cases the inflamed appendix could be demonstrated by ultrasound, utilising 5 and 7.5 MHz intraoperative linear array transducers. Our study was started to evaluate the possibilities of a standard 7.5 MHz sector transducer in detecting acute appendicitis. In our study sonography was correctly diagnosed in 72% of cases, but it became apparent that with the larger format transducer used in our study the retrocaecal appendix could not be demonstrated in the majority of cases. The reliability of sonography in detecting acute appendicitis is not high enough to be used on a large scale but sonography can play a role in doubtful cases of suspected acute appendicitis.

Acute Disease↗
PubMed1984

Sonographic detection of early gallbladder cancer.

During routine abdominal sonography and in cases of 'normal' gallbladder symptomatology, the sonographer may encounter an unsuspected early gallbladder cancer. 1 case report is presented in which a patient previously known with gallbladder concrements developed a primary gallbladder carcinoma within a period of 1 1/2 years. The clinical, pathological and prognostic features are discussed.

Adenocarcinoma↗
PubMed1984

Adult abdominoscrotal hydrocele.

Abdominoscrotal hydrocele is very uncommon in both adults and children. A case is presented of an unusually large abdominoscrotal hydrocele in an adult associated with unilateral hydronephrosis owing to contiguous pressure. To our knowledge this is an unique case in which the preoperative diagnosis became apparent after abdominal ultrasound. An IVU and an abdominal CT study confirmed the sonographic diagnosis. An entity as such has never been reported nor has it been presented in recent literature.

Abdomen↗
PubMedDate not supplied

Percutaneous ultrasound-guided management of pericardial fluid.

The use of a Rotex screw biopsy needle is advocated for percutaneous ultrasound-guided management of pericardial fluid. This procedure is performed under sonographic guidance while the needle tip is clearly visualized during introduction, thereby improving optimal placement and limiting the possibility of complications.

Aged↗