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Biomedical subjects

M Margolis

Publications and source records attributed to M Margolis.

At least 37 records · Page 2Linked to original sources
PubMed1994

Differentiation of adrenal masses with MR imaging: comparison of techniques.

PURPOSE: To determine the efficacy of various magnetic resonance (MR) imaging sequences for the differentiation of adrenal masses. MATERIALS AND METHODS: Fifty-three adrenal masses in 46 patients (adenomas, metastases, myelolipomas, hemorrhages, and pheochromocytomas) were evaluated by means of T1-, T2-, and T2*-weighted sequences, calculated T2 values, chemical shift imaging techniques, and dynamic contrast material-enhanced imaging. The Student t test and receiver operating characteristic analysis were used to evaluate the differences in the groups of masses. RESULTS: Analysis of the chemical shift-induced signal intensity of the adrenal masses and the T2*-weighted sequence enabled differentiation of adenomas, metastases, and pheochromocytomas. Adenomas and pheochromocytomas were also differentiated by means of a heavily T2-weighted sequence. Signal intensity values for all masses overlapped. CONCLUSION: Although a chemical shift imaging technique and a T2*-weighted sequence helped correctly differentiate among the groups of adrenal masses, the degree of overlap suggests that it is still difficult to evaluate disease in individual patients.

Adenoma↗
PubMed1993

Reliability of a functional mobility assessment tool with application to neurologically impaired patients: a preliminary report.

The purpose of this preliminary study was to examine the intratester and intertester reliability of a functional mobility assessment tool (FMAT). Seven licensed physical therapists with varying amounts of clinical experience served as raters. Twelve patients with neurological deficits were subjects for this study. Raters were asked to provide eight possible ratings for each of eight critical mobility functions. Average weighted kappa coefficients ranged from .82 to .97. Intraclass correlation coefficients ranged from .73 to .97 for the first assessment and from .52 to .97 for the second (retest) assessment. A high degree of agreement between and within seven raters indicated that this tool may provide an effective assessment of stroke, brain injury, and spinal cord injury. Preliminary findings indicate the functional mobility assessment tool is reliable, thereby increasing the usefulness of this method for clinical assessment. The high resolution of the FMAT makes this tool ideally suited for use in future studies focusing on the prediction of mobility function following neurological insult.

Activities of Daily Living↗