Ultrasound Hemodynamics Study Of The Pulseless Disease In Upper Limb

Objective: To investigate the ultrasonographic characters of the Pulseless Disease with different causes by using color Doppler ultrasound, especially the hemodynamics characters. The application of ultrasonography in the diagnosis of Pulseless Disease was evaluated.Methods: Thirty-five clinical patients diagnosed as Pulseless Disease were studied. We employed HP-5500 and Acuson. 128XP/10 A. R. T color Doppler computed so-nograph. (The frequency of the probe was 5MHz, 7.0 MHz and 7. 5 MHz, the angle between the sound beam and flow was smaller than 60 degrees.) We detected from the beginning of the SCA (INA) to the' BA , the ulnar artery and the radial artery, and compared it with the normal ones. We measured the diameters of the SCA and the BA, the narrows and deformation of the SCA (INA), the abnormal echo signals in the lumen or in the tissues around the SCA were displayed. We detected the CCA and the VA to determine the changes of echo signals in the lumen. We detected the position, level, echo characters and characters of Doppler flow of narrowed SCA.Results: Twelve patients were diagnosed as ASO, seven patients were diagnosed as TA, nine patients were diagnosed as TOS and seven patients were others by the ultrasonography. The velocities of the-BA forward flow were lower (37.943\ 5.892cm/s vs 90. 311 \ 10.528cm/s, p<0.05) than the healthy .ones. The diameters of the SCA with ASO, TA, and TOS were different ( 9. 027 \0. 315mnu 8. 87\ 1.791mm and 10. 44\0.342mm). And the velocities of ASO, TA and TOS were different (80. 57\16. 050cm/s, 104. 83\18. 866cm/s and 106. 54\18. 586cm/s, p<0.05). The velocities of SCA become obviously higher in the patients with narrowed SCA (the max was 507cm/s) ; But it become lower in the patients with the longer narrowed SCA ; And we couldn' t detect the signals of blood flow in the obliterated lumen. The color signals of the blood flow of the patients in the narrowed SCA became bright; And it became weak in the longer narrowed SCA. The major causes of the Pulseless Disease were ASO, TA, TOS, and so on, and there were many difference in sex, age, position and so on.Conclusion: Two-dimensional ultrasonography could provide patients with Pulseless Disease images of SCA, INA and BA, determined the position, level of narrowed SCA and echo characters. Color and pulsed Doppler ultrasonography could provide properties and characters of blood flow in lesion field and determined its hemodynamics. Through the study by ultrasonography in the diagnosis ofPulseless Disease, We thought ultrasonography was sensitive and reliable, it could provide etiological diagnosis. It was proper to screen the suspected patients and to follow-up patients with Pulseless Disease. Therefore it was the first choice for the examination of Pulseless Disease.