PubMed Health⌕ Search

Biomedical subjects

G J Kieft

Publications and source records attributed to G J Kieft.

9 recordsLinked to original sources
PubMed1990

Magnetic resonance imaging of the shoulder in patients with rheumatoid arthritis.

To evaluate the ability of magnetic resonance imaging (MRI) to detect shoulder abnormalities 18 patients (36 shoulders) with rheumatoid arthritis (RA) and shoulder complaints were studied. Osseous abnormalities of the glenoid and humeral head were readily detected with MRI. The imaging planes used were not suitable for the evaluation of acromioclavicular joint involvement. Magnetic resonance imaging depicted soft tissue abnormalities that were not clearly visualised by plain film radiography, such as involvement of rotator cuff tendons and subacromial bursae, joint effusion, and muscular atrophy. Magnetic resonance imaging appears to be a sensitive method for evaluation of glenohumeral joint changes in patients with RA.

Adult↗
PubMed1988

Rotator cuff impingement syndrome: MR imaging.

Ten patients with clinically suspected rotator cuff impingement syndrome were evaluated with magnetic resonance (MR) imaging, double contrast arthrography, and conventional radiography. An area of increased signal intensity in the tendinous portion of the rotator cuff was seen in eight of ten patients on images obtained with a short repetition time (TR) and short echo time (TE) and those obtained with a long TR and long TE with spin-echo sequences. Microscopic findings, available in five patients, indicated that these areas of increased intensity corresponded to degeneration and inflammation of the rotator cuff. A previously injected long-acting steroid preparation combined with a local anesthetic, which also produces an area of increased signal intensity on long TR, long TE images, can cause problems with image interpretation. No tears of the rotator cuff were detected with MR imaging. However, a full-thickness cuff tear was detected with arthrography in three patients. Although based on a relatively small group of patients, these preliminary findings suggest that MR imaging is capable of demonstrating rotator cuff abnormalities in patients with impingement syndrome.

Humans↗
PubMed1988

MR imaging of recurrent anterior dislocation of the shoulder: comparison with CT arthrography.

Posttrauma damage due to anterior glenohumeral joint dislocation may result in recurrent dislocation. Currently CT arthrography is the method of choice to evaluate the extent of osseous and soft-tissue changes before reconstructive surgery. This study was undertaken to determine if MR was able to depict postdislocation abnormalities and if MR is a possible replacement for CT arthrography. Thirteen patients with recurrent anterior shoulder dislocation were evaluated with conventional radiography and MR; CT arthrography was performed in 10. Twelve patients underwent surgery, and the findings of MR and CT arthrography were verified. MR and CT arthrography showed the integrity of the glenoid labrum equally well. All humeral head defects, detected in nine patients with plain film radiography and CT, were easily identified with MR. Information about anterior joint capsule abnormalities is difficult to obtain with MR. However, separation of the capsule from the bony glenoid can be detected if a joint effusion is present to adequately distend the joint. Preliminary results of this study indicate that MR is useful in the assessment of postdislocation abnormalities and may possibly replace CT arthrography in the evaluation of patients with recurrent shoulder dislocation.

Humans↗
PubMed1987

Magnetic resonance imaging of glenohumeral joint diseases.

Through the application of oblique planes and flexible surface coil techniques, magnetic resonance imaging (MRI) promises to be of great clinical value in the evaluation of a variety of pathologic conditions affecting the shoulder. In patients with joint effusions, the tendinous portion of the rotator cuff, glenoid labrum, and bicipital tendon can be readily visualized. This capability has particular relevance in patients with inflammatory disease and traumatic conditions. Rotator cuff atrophy and impingement of the coracoacromial arc upon the supraspinatus muscle and tendon can also be demonstrated. MRI is also useful in the evaluation of shoulder instability.

Humans↗
PubMed1987

Knee arthrography: a comparison of iohexol, ioxaglate sodium meglumine, and metrizoate.

The arthrographic image quality and relative morbidity resulting from use of Omnipaque 300 (iohexol), Hexabrix 320 (ioxaglate sodium meglumine), and Isopaque Coronar 370 (metrizoate) were compared in a prospective double-blind study performed with 120 patients. Radiographs obtained 2, 5, 10, 15, 20, and 25 minutes after injection were judged for diagnostic quality. Relative morbidity was evaluated by the physician during the examination and later by the patient via a questionnaire. Hexabrix demonstrated the best and most persistent diagnostic quality over serial radiographs (P less than .05). Omnipaque caused significantly less postprocedural pain (P less than .05). The other types of discomfort measured did not indicate statistically significant differences in morbidity resulting from the three contrast agents.

Adolescent↗
PubMed1986

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↗