Title :
Calibration of cross-sectional images measured by an ultrasound-based muscle evaluation system
Author :
Fukumoto, Kiyotaka ; Muraki, Satoshi ; Tsubai, Masayoshi ; Fukuda, Osamu
Author_Institution :
Grad. Sch. of Design, Kyushu Univ., Fukuoka, Japan
Abstract :
The quantification of muscle volume can be used to estimate muscular strength. Therefore, we developed a flexible measuring system for muscle volume using ultrasonography. In the measuring process, subjects are not required to perform any muscular contraction, so it is completely safe and particularly suitable for elderly people. The ultrasound probe is installed on a mechanical arm, and continuously scans fragmental images along the body surface. The measured images are then composed into a wide area cross-sectional image. However, the muscle area measured by our system was slightly smaller than that measured by MRI. because the ultrasound probe contacted the body surface with a little pressure during the measurement. The strain then decreases the total image size and its circumference. This paper introduces our developed system and proposes a new calibration method for the muscle area in the thigh based on its circumference.
Keywords :
biomedical ultrasonics; calibration; geriatrics; medical image processing; muscle; calibration; cross-sectional images; muscle volume; muscular strength; thigh; ultrasonography; ultrasound-based muscle evaluation system; Anatomy, Cross-Sectional; Calibration; Humans; Image Interpretation, Computer-Assisted; Imaging, Three-Dimensional; Japan; Muscle, Skeletal; Organ Size; Reproducibility of Results; Sensitivity and Specificity; Ultrasonography;
Conference_Titel :
Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4244-3296-7
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2009.5334703