Gender differences in carpal height ratio in a taiwanese population.

Purpose: To discover whether there is a significant difference in carpal height ratio (CHR) between men and women aged 20 to 50 years.

Methods: We retrospectively reviewed 261 cases of normal plain wrist radiographs and measured the CHR using the Picture Achieving and Communication System. Each case was then stratified by gender and age (20-29, 30-39, and 40-50 y).

Picture archive and communication system (PACS) in the detection of fish bone: an animal study.

Objectives: We have developed an animal model to investigate the feasibility of using a digital radiography picture archive and communication system (PACS) to identify fish bones.

Subjects And Methods: Bones from 21 species of freshwater and seawater fish were placed in the upper esophagus of a test pig. Digital radiographic images of the lateral neck were taken (60 kV, 200 mA, and 20 ms, 100 cm in distance).

Combination of tissue harmonic sonography, real-time spatial compound sonography and adaptive image processing technique for the detection of carotid plaques and intima-medial thickness.

Background And Purpose: Conventional sonography (CS) had many unwanted artifacts, which obscured the carotid artery lesions. We try to explore whether the combination of tissue harmonic imaging (THI), real-time spatial compound sonography (SCS), and adaptive image processing (AIP) techniques (CTX) could be a better way to reduce the artifacts in the carotid artery and enhance the visualization of its plaques and intima-medial thickness (IMT) than CS.

Methods: Eighty-three patients who harbored IMT (73) and carotid plaques (19) with variable degrees of stenosis underwent scanning for which five different ultrasound techniques were performed for overall image quality, lesion conspicuity, and elimination of artifacts.

Dynamic effects of axial loading on the lumbar spine during magnetic resonance imaging in patients with suspected spinal stenosis.

Background: Previous studies have shown that axial compression in extension (ACE) of the spine during magnetic resonance imaging (MRI) has revealed unexpected pathological features compared with the conventional psoas-relaxed position (PRP) used in imaging. The purpose of this study was to evaluate the dynamic effect of axial loading on lumbar spinal stenosis using MRI in patients with spinal stenosis.

Methods: A total of 14 women and 11 men with lumbar spinal stenosis were examined in both PRP and ACE positions.