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Biomedical subjects

C F Pope

Publications and source records attributed to C F Pope.

7 recordsLinked to original sources
PubMed1992

Normal and abnormal glenoid labrum: assessment with multiplanar gradient-echo MR imaging.

A retrospective study of magnetic resonance (MR) imaging of the glenoid labrum performed with multiplanar gradient-echo (MPGR) sequences was done to ascertain the different appearances of the normal labrum and the findings in patients with tears. MPGR images were obtained with a 1.5-T magnet in 37 shoulders of 16 healthy subjects and 19 patients with subsequent surgical evaluation. Increased intralabral signal intensity was seen in 12 of 26 normal shoulders (46%), and atypical morphology was seen in six shoulders (23%). Atypical morphology was present in eight of nine patients with labral tears. Deformity (n = 2 [22%]) and clefts (n = 2 [22%]) were seen in patients with tears. Deformity (n = 3 [12%]) and clefts (n = 1 [4%]) were occasionally seen in healthy subjects. Absence of the labrum and separation of the labrum from the glenoid cavity was present only in patients with tears; therefore, the labrum should be presumed torn in the presence of these findings. Increased intralabral signal intensity on MPGR images did not help predict labral integrity; morphologic findings were more predictive of labral tear.

Adolescent↗
PubMed1992

Radiologic evaluation of tendon injuries.

This article reviews the imaging choices available to assess the tendons of the shoulder, knee, ankle, and wrist. Principles of tendon imaging and fundamental considerations of computer-derived image techniques are briefly discussed, with particular reference to magnetic resonance imaging. Although the criteria used to classify various tendon abnormalities are provided, the clinical role of imaging is emphasized.

Ankle Injuries↗
PubMed1991

Magnetic resonance imaging of the surgically repaired meniscus: six-month follow-up.

The appearance and rate of healing of sutured meniscal repairs in 17 patients were evaluated using magnetic resonance scans. While prior studies in animals and humans (1-4) suggest that complete healing can occur as early as 6 wk postoperatively, we found that at 7 wk 15/15 patients demonstrated meniscal defects at the site of repair. At 6 mo, 11/11 patients showed persistent signal abnormalities. Two patients scanned at 11-12 mo also had defects at the site of repair. Therefore, complete meniscal healing appears not to occur as early as previously believed. This may affect decisions regarding the type of suture material used, the surgical treatment of associated injuries and the postoperative rehabilitation regimen. As defects may be present for relatively long periods of time following meniscal repair, caution must be exercised when attempting to diagnose new or recurrent tears in these patients.

Adolescent↗
PubMed1991

Technical variables influencing the detection of acute deep vein thrombosis by magnetic resonance imaging.

To establish which technical variables influence the detection of deep vein thrombosis by magnetic resonance imaging, 2 dogs, 5 normal volunteers and 17 patients were studied using a 1.5 T whole-body system. A sequential slice gradient echo acquisition (TR 25, TE 13, 0 = 30 degrees, 2 NEX, flow compensation rephasing gradients) in the axial plane was found to be optimal for detecting venous thrombosis. Thus, when using appropriate technique, MRI may identify deep venous thrombosis accurately. It may also allow the diagnosis of conditions which may simulate venous thrombosis clinically since the most common of these, ruptured Baker's cyst, cellulitis, muscle tear, hematoma and external venous compression are all readily identified by MRI.

Acute Disease↗
PubMed1991

Follow-up of grade 2 meniscal abnormalities in the stable knee.

A prospective study of grade 2 meniscal abnormalities in patients with intact anterior cruciate ligaments was done to ascertain whether such lesions progress to complete tears. A follow-up magnetic resonance (MR) image was obtained in 22 patients in whom the initial MR image showed a grade 2 lesion in one or both menisci that had been proved at arthroscopy not to be torn. On the initial images, 27 menisci contained a grade 2 lesion. At follow-up, six of the 27 lesions appeared to have decreased in size (two had completely disappeared). Eighteen lesions appeared unchanged; only three had increased in size. The mean interval between the acquisition of initial and follow-up images was 27.3 months (range, 11-41 months). The two patients whose lesion disappeared were among the youngest patients evaluated. The three patients whose abnormality increased were slightly older and more active than average. The results suggest that in most patients grade 2 lesions are stable at up to 3 years follow-up.

Adolescent↗
PubMed1977

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Insurance, Dental↗