[Exploration of patients with an unknown primary tumor].
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Adenocarcinoma↗
Biomedical subjects
G J Kieft
Publications and source records attributed to G J Kieft.
Normal shoulder: MR imaging.
Relatively poor spatial resolution has been obtained in magnetic resonance (MR) imaging of the shoulder because the shoulder can only be placed in the periphery of the magnetic field. The authors have devised an anatomically shaped surface coil that enables MR to demonstrate normal shoulder anatomy in different planes with high spatial resolution. In the axial plane, anatomy analogous to that seen on computed tomographic (CT) scans can be demonstrated. Variations in scapular position (produced by patient positioning) may make reproducibility of sagittal and coronal plane images difficult by changing the relationship of the plane to the shoulder anatomy. Oblique planes, for which the angle is chosen from the axial image, have the advantage of easy reproducibility. Obliquely oriented structures and relationships are best seen in oblique plane images and can be evaluated in detail.
Humans↗
Westermark's sign demonstrated by a peripherally wedged Swan-Ganz catheter. A case report.
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Aged↗
Spiral CT appearance of resolving clots at 6 week follow-up after acute pulmonary embolism.
PURPOSE: The purpose of this work is to describe the spiral CT appearance of resolving clots at 6 week follow-up in patients with acute pulmonary embolism (PE). METHOD: Nineteen patients with acute PE initially identified with spiral CT scan underwent repeat CT examinations at 6 week follow-up after the start of anticoagulant therapy. The appearances of the clots on the initial CT scan and follow-up CT scan were analyzed. RESULTS: Normalization of the pulmonary arteries at follow-up was seen in six patients (32%) only. Residual abnormalities were present in 13 of 19 patients (68%). Resolving clots were seen as eccentric wall-adherent filling defects (22%) or filling defects with central contrast material (3%). CONCLUSION: Resolving clots after acute PE can be seen with follow-up CT scan in the majority of patients. It is important to be familiar with these findings.
Acute Disease↗