Ophthalmologic diagnostic tool using MR images for biomechanically-based muscle volume deformation

2003 ◽  
Author(s):  
Michael Buchberger ◽  
Thomas Kaltofen
Keyword(s):  
Diagnostic Tool ◽  
Muscle Volume ◽  
Mr Images ◽  
Volume Deformation

scholarly journals Psoas Muscle Volume as an Opportunistic Diagnostic Tool to Assess Sarcopenia in Patients with Hip Fractures: A Retrospective Cohort Study

2021 ◽  
Vol 11 (12) ◽  
pp. 1338
Author(s):  
Sang-Pil So ◽  
Bum-Sik Lee ◽  
Ji-Wan Kim
Keyword(s):  
Skeletal Muscle ◽  
Hip Fractures ◽  
Diagnostic Tool ◽  
Retrospective Cohort ◽  
Psoas Muscle ◽  
Cross Sectional Area ◽  
Muscle Volume ◽  
Sectional Area ◽  
Muscle Area ◽  
Cross Sectional

Purpose: This study aims to determine whether the psoas volume measured from a pelvic computed tomography (CT) could be a potential opportunistic diagnostic tool to measure muscle mass and sarcopenia in patients with hip fractures. Methods: This was a retrospective cohort study. In total; 57 consecutive patients diagnosed with hip fractures who underwent surgery were enrolled. A cross-sectional area of the psoas muscle was measured at the lumbar (L) 3 and L4 vertebrae from a pelvic CT for the diagnosis of hip fractures. The psoas muscle volume was calculated with a three-dimensional modeling software program. The appendicular skeletal muscle mass (ASM) and preoperative handgrip strength (HS) were measured. The correlations between the psoas muscle volume/area and ASM/HS were assessed. Data on patient demographics; postoperative complication; length of hospital stay; and Koval scores were also recorded and analyzed with respect to the psoas muscle area/volume. Results: The psoas muscle volume and adjusted values were significantly correlated with ASM; which showed a stronger correlation than the psoas muscle area did at the L3 or L4 level. HS was correlated with the psoas volume or adjusted values; but not with the cross-sectional area of the psoas muscle. Among the adjusted values; the psoas muscle volume adjusted for the patient’s height (m2) showed a strongest correlation with ASM and HS. The psoas muscle volume was not significantly correlated with postoperative complications or short-term functional outcomes. Conclusions: The psoas muscle volume measured from a pelvic CT for the diagnosis of hip fractures showed a stronger correlation with ASM and HS than the cross-sectional area did. Therefore; the psoas muscle volume could be a potential diagnostic tool to assess the quantity of the skeletal muscle in patients with hip fractures without an additional examination.

Real-time Biomechanically-based Muscle Volume Deformation using FEM

1998 ◽  
Vol 17 (3) ◽  
pp. 275-284 ◽  
Author(s):  
Qing-hong Zhu ◽  
Yan Chen ◽  
Arie Kaufman
Keyword(s):  
Real Time ◽  
Muscle Volume ◽  
Volume Deformation

scholarly journals Does MRI Increase the Diagnostic Confidence of Physicians in an Outpatient Memory Clinic

2016 ◽  
Vol 6 (2) ◽  
pp. 242-251 ◽  
Author(s):  
Leo Boelaarts ◽  
Philip Scheltens ◽  
Jos de Jonghe
Keyword(s):  
Diagnostic Tool ◽  
Cognitive Disorders ◽  
Added Value ◽  
Everyday Practice ◽  
Diagnostic Process ◽  
Unexpected Finding ◽  
Mr Images ◽  
Diagnostic Confidence ◽  
Tertiary Referral ◽  
Before And After

Background and Aim: Data showing the usefulness of MRI to improve the accuracy of the diagnostic process in cognitive disorders were derived from studies in tertiary referral centers. MRI is widely used as a diagnostic tool in everyday practice, but it is unknown what the actual added value of MRI is. We studied the usefulness of MRI in the diagnostic process by measuring the change of confidence of the physician. Methods: Physicians indicated confidence in their diagnosis before and after presentation of MR images using a visual analogue scale from 0-100%. Results: Use of MRI increased the level of confidence by 3% in experienced clinicians and by 9% in inexperienced physicians. In 2/125 cases, MRI showed an unexpected finding. Conclusion: MRI is a useful diagnostic tool in everyday practice of diagnosing cognitive disorders.

The Elicited Language Analysis Procedure

1982 ◽  
Vol 13 (1) ◽  
pp. 37-41
Author(s):  
Larry J. Mattes
Keyword(s):  
Diagnostic Tool ◽  
Descriptive Analysis ◽  
Quality Measures ◽  
Analysis Procedure ◽  
Elicited Imitation ◽  
Response Quality ◽  
Semantic Relationships ◽  
Language Analysis

Elicited imitation tasks are frequently used as a diagnostic tool in evaluating children with communication handicaps. This article presents a scoring procedure that can be used to obtain an in-depth descriptive analysis of responses produced on elicited imitation tasks. The Elicited Language Analysis Procedure makes it possible to systematically evaluate responses in terms of both their syntactic and semantic relationships to the stimulus sentences presented by the examiner. Response quality measures are also included in the analysis procedure.

Sign in / Sign up

Export Citation Format

Share Document