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Biomedical subjects

H Strunk

Publications and source records attributed to H Strunk.

100 records · Page 6Linked to original sources
PubMed1988

[Typical radiologic findings in Mirizzi syndrome].

In extrahepatic cholestasis it is necessary to include Mirizzi's syndrome in the differential diagnostic considerations. Characteristic findings in sonography and computed tomography are: a stone incorporated in the neck of the gallbladder or cystic duct with an extension of the common hepatic duct above the stone and normal width of the bile duct below the stone; in endoscopic retrograde cholangiography (ERC, direct cholangiography), a characteristic finding is a smooth-walled, segmental stenosis through external compression or an incorporated stone.

Cholangiopancreatography, Endoscopic Retrograde↗
PubMed1988

[Kidney metastases in computerized tomography].

The CT image of renal metastases is described for 29 patients. The most frequent primary tumour was the bronchial carcinoma, followed by melanoma and cervical carcinoma. In 12 of 29 patients (41%) the metastases occurred bilaterally, in 17 (59%) unilaterally. 9/29 (31%) had solitary, 20/29 (69%) multiple renal metastases. In 19 (66%) these had a size of up to 3 cm and were situated intraparenchymally. Space-occupying growths up to a size of 10 cm which grew exophytically were seen in melanoma and carcinoma of the larynx and chorion. In the plain CT the metastases presented isodense or slightly hypodense in 25 of 27 examinations (93%). After application of contrast medium all presented hypodense with the exception of metastases of a chorionic carcinoma.

Humans↗
PubMed1987

[Computed tomography of atelectasis. A comparative experimental study].

After breathing pure oxygen, total atelectasis of one lung was produced in ten dogs; its development and regression was followed by CT and by conventional radiology. 30 seconds after cessation of ventilation, it was possible to show a rise in CT density of the atelectatic lung from -764 +/- 32 HU to -739 +/- 49 HU. The average time from the cessation of ventilation to total atelectasis averaged 5.5 +/- 1.1 minutes. The earliest sign on conventional radiographs was often seen after 30 seconds and usually after 60 seconds and consisted of mediastinal displacement. Extensive atelectasis regressed in only one out of six animals within one hour after resuming ventilation. The experimental methods and results and the significance of the physiological findings in a clinical context are discussed.

Animals↗
PubMed1987

[Diffuse leiomyomatosis of the stomach].

Sonography and computed tomography were the first imaging methods enabling the visualization of intramurally growing tumours of the stomach. The article reports on a rare case of a diffuse leiomyoma that was diagnosed by means of computed tomography.

Aged↗
PubMed1986

[Computed tomography of lung contusion. An experimental study].

A new experimental model has been developed to determine whether computed tomography has any advantages for the investigation of lung contusions. In 27 dogs, chest wall deformation was produced at speeds varying from 17.3 m/sec to 45.7 m/sec, leading to lung contusion. After the injury, 27 out of 27 (100%) CT examinations demonstrated the contusions, but only nine out of 24 (37.5%) were seen on conventional radiographs. In contrast to conventional radiography, which either failed to show the presence of a contusion, or which under-estimated the extent by more than one cm, in more than half the cases CT agreed with the pathological findings in more than 90%. No lung contusions were found at autopsy which had not been demonstrated by CT.

Animals↗
PubMedDate not supplied

Percutaneous penile venoablation for treatment of impotence.

Percutaneous penile venoablation with sclerosing agents and coils was performed in 58 patients. Of 104 ablations attempted, 44 of 51 (86%) transpenile, and 46 of 53 (86.7%) retrograde interventions were technically successful. In 40 patients (69%) erectile function improved (intercourse was possible in 21 without additional measures). Initially improved erectile function deteriorated in 24 patients during follow-up (in an average of 6 months); in 15 of these, intercourse was still possible with injection of vasoactive drugs. In 7 patients, repeat venoablation improved erectile function again. Hot contrast medium was slightly superior to sodium morrhuate as a sclerosing agent. In successfully treated patients, the average decrease in venous leakage was 30 ml/min vs 13 ml/min in treatment failures, with considerable overlap between both groups. Only minor complications were observed. We conclude that percutaneous penile venoablation is technically feasible, and safe. Whether the procedure will have a definite role in the treatment of venogenic impotence, however, still has to be determined.

Embolization, Therapeutic↗
PubMedDate not supplied

Infarction and laceration of liver parenchyma caused by wedged CO(2) venography before tips insertion.

We describe the fatal outcome of an elective TIPS procedure performed in a 43-year-old man with alcoholic cirrhosis. Wedged hepatic venography with CO(2) was the reason for infarction and laceration of liver parenchyma resulting in a subcapsular hematoma and subsequent intra-abdominal bleeding. This is the first report of this complication after the use of CO(2) in a cirrhotic patient.

Adult↗
PubMedDate not supplied

Nonsurgical fluoroscopically guided dacryocystoplasty of common canalicular obstructions.

PURPOSE: To assess dacryocystoplasty in the treatment of epiphora due to obstructions of the common canaliculus. METHODS: Twenty patients with severe epiphora due to partial (n = 16) or complete (n = 4) obstruction of the common canaliculus underwent fluoroscopically guided dacryocystoplasty. In all cases of incomplete obstruction balloon dilation was performed. Stent implantation was attempted in cases with complete obstruction. Dacryocystography and clinical follow-up was performed at intervals of 1 week, and 3, 6, 12, and 18 months after the procedure. The mean follow-up was 6 months (range 3-18 months). RESULTS: Balloon dilation was technically successfully performed in all patients with incomplete obstructions (n = 16). In three of four patients with complete obstruction stent implantation was performed successfully. Subsequent to failure of stent implantation in one of these patients balloon dilation was performed instead. The long-term primary patency rate in patients with incomplete obstructions was 88% (n = 14/16). In three of four cases with complete obstruction long-term patency was achieved during follow-up. Severe complications, infections, or punctal splitting were not observed. CONCLUSION: Fluoroscopically guided balloon dacryocystoplasty is a feasible nonsurgical therapy in canalicular obstructions with good clinical results that may be used as an alternative to surgical procedures. In patients with complete obstructions stent placement is possible but further investigations are needed to assess the procedural and long-term results.

Catheterization↗
PubMedDate not supplied

Pulmonary contusion: CT vs plain radiograms.

In experimentally induced pulmonary contusions, CT (n = 27) and chest X-ray (n = 24) findings were compared with the findings at autopsy. Twenty-seven of 27 (100%) pulmonary contusions were visible by CT immediately after trauma compared with 9 of 24 (37.5%) in the chest X-ray. After 30 min follow-up, 18 of 24 (75%) lesions were seen on the plain film. Five of 24 (21%) contusions escaped detection on conventional radiographs. Computed tomography underestimated lesion size in 5 of 60 (8%) measurements, conventional radiographs in 21 of 36 (58%) measurements. Pathological examination never revealed a pulmonary contusion that was not demonstrated by CT. Therefore, pulmonary contusion seems unlikely in a trauma patient with normal pulmonary CT.

Animals↗