Design and Trial Operation of Tele-rehabilitation Gradient Motor Function Self-evaluating System for Stroke Patients / 中国医疗器械杂志

In order to overcome the defects of the motor function evaluation systems contained in current tele-rehabilitation devices, such as inconvenient, incomplete of measurement position, nonstandard and lacking of humanized design, we designed and developed a tele-rehabilitation gradient motor function self-evaluating system in this paper. Based on Brunnstrom stage, this system which was competitive comparing to manual evaluations, common tele-rehabilitation assessments and similar nonmedical products, realized the quantitative motor assessment for both limbs of stroke patients using the self-developed algorithms. The clinical trials proved that the system was feasible and accurate.

MRI evaluation on disease development of chronic brucellosis spondylitis and its value / 中国人兽共患病学报

We evaluated the patient in the early,advanced or healing phase of the disease by MRI in the treatment of chronic brucellosis spondylitis and to guide the clinical treatment.MRI images of 40 patients with clinically diagnosed chronic brucellosis spondylitis were analyzed retrospectively.The imaging findings of early,advanced and healing patients were summarized.MRI showed abnormal signals in the vertebral body,intervertebral disc,paraspinaI and psoas muscle.It is early stage if the intervertebral space was normal,and advanced stage if combined with interverbral space stenosis.It demonstrated short T1 and short T2 signal or similar to the normal vertebral body,combined with intervertebral space stenosis,for the healing stage.According to the specific imaging manifestations of chronic brucellar spondylitis in the course of disease development,it is possible to evaluate the clinical stage of the disease and guide the rational selection of clinical treatment.

Comparative Analysis of DDR and Screen-film Radiography / 医疗卫生装备

Objective To explore the exposure condition of DDR, screen -film radiography and the radiation dose to patients, and evaluate value of the DDR system. Methods Five thousand images of DDR and screen-film radiography were selected and then analyzed by three junior radiologists and two senior radiologists. Results 1.The quality of the images was classified into grades A ,B ,C: grade A in 92.8 % , grade B in 7.2 % , grade C in 0% ,waste in 0 % for DDR group and grade A in 40.8% , grade B in 41.7 %,grade C in 15.5 % ,waste in 2% for screen-film radiography group. 2. The required voltage of DDR system raises 3-24kV than screen-film radiography and radiation exposure was increased about 25 % . Conclusions The imaging quality of DDR was obviously higher than the screen -film radiography, but the disadvantage of DDR system was the higher exposure condition required, which increase X-ray radiation dose for patients.