Biomedical subjects

D S Gray

Publications and source records attributed to D S Gray.

39 records · Page 3Linked to original sources

PubMedDate not supplied

MR evaluation of the anterior cruciate ligament: value of axial images.

OBJECTIVE: To investigate the accuracy of diagnosing anterior cruciate ligament (ACL) tears with axial MR imaging. MATERIALS AND METHODS: Two blinded independent observers retrospectively reviewed axial T2 weighted or FSE fat suppressed imaging of the knee from 47 patients. Arthroscopy had demonstrated a complete tear of the ACL in 25 patients and a normal ACL in 22 patients. The two criteria used to diagnose ACL tears on sequential axial imaging were (a) lack of visualization of the ACL in its expected course or (b) focal increased signal in the expected course of the ACL. RESULTS: Observer 1 demonstrated a sensitivity of 92% (23 of 25) and a specificity of 100% (22 of 22) in diagnosing ACL tears (chi 2 = 39.6, p < 0.001). Observer 2 demonstrated a sensitivity of 92% (23 of 25) and a specificity of 82% (18 of 22) in diagnosing ACL tears (chi 2 = 26.1, p < 0.001). The Kappa value was 0.75 (agreement in 41 of 47 cases), indicating a high degree of intraobserver agreement. CONCLUSION: Axial T2 weighted or FSE fat suppressed imaging provides an accurate means of confirming the diagnosis of ACL tears.

Adult↗

PubMedDate not supplied

Accuracy of recumbent height measurement.

Since many patients requiring specialized nutritional support are bedridden, measurement of height for purposes of nutritional assessment or prescription must often be done with the patient in bed. This study examined the accuracy of measuring body height in bed in the supine position. Two measurements were performed on 108 ambulatory inpatients: (1) standing height using a standard height-weight scale, and (2) bed height using a flexible tape. Patients were divided into four groups based on which of two researchers performed each of the two measurements. Each patient was also weighed and self-reported height, weight, sex, and age were recorded. Bed height was significantly longer than standing height by 3.68 cm, but the two measurements were equally precise. It was believed, however, that this 2% difference was probably not clinically significant in most circumstances. Bed height correlated highly with standing height (r = 0.95), and the regression equation was standing height = 13.82 +/- 0.09 bed height. Patients overestimated their heights. Heights recorded by nurses were more accurate when patients were measured than when asked about their heights, but the patients were more often asked than measured.

Adolescent↗

PubMedDate not supplied

Home total parenteral nutrition in a pregnant diabetic after jejunoileal bypass for obesity.

Pregnancy after jejunoileal bypass (JIBP) for obesity is generally well tolerated without serious complications. A 24-yr-old diabetic patient who had previously had a JIBP procedure presented during pregnancy with severe malnutrition. She was treated successfully with home total parenteral nutrition. Previously published experience with pregnancy after JIBP and the use of parenteral nutrition during pregnancy is reviewed.

Adult↗