Relationship between coronary angioscopic and intravascular ultrasound imaging and restenosis

In order to investigate the relationship between restenosis and the morphology detected by coronary angioscopy (CASC) and introvascular ultrasound imaging (IVUS), 17 patients were detected by CASC and IVUS immediately and 3 months after percutaneous transluminal coronary angioscopy (PTCA). The resul...

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Bibliographic Details
Published inChinese medical journal Vol. 108; no. 10; p. 743
Main Authors Xu, S, Nomura, M, Kurokawa, H, Ando, T, Kimura, M, Ishii, J, Hasegawa, H, Kondo, T, Tadiki, S, Qi, P
Format Journal Article
LanguageEnglish
Published China 01.10.1995
Subjects
Aged
Angioplasty, Balloon, Coronary
Angioscopy
Coronary Disease - therapy
Coronary Vessels - diagnostic imaging
Humans
Male
Middle Aged
Recurrence
Treatment Failure
Ultrasonography, Interventional
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Summary:In order to investigate the relationship between restenosis and the morphology detected by coronary angioscopy (CASC) and introvascular ultrasound imaging (IVUS), 17 patients were detected by CASC and IVUS immediately and 3 months after percutaneous transluminal coronary angioscopy (PTCA). The results showed that the dilation index by IVUS (DIu) was significantly lower in restenosis patients than in non-restenosis patients (0.42 +/- 0.08 versus 0.78 +/- 0.16, P < 0.01) and that the elastic recoil (ER) was higher in restenosis patients than in non-restenosis patients (4.51 +/- 1.42 mm2 versus 1.63 +/- 1.20 mm2, P < 0.01), and that the elastic recoil rate (ERR) was also higher in restenosis patients than in non-restenosis patients (57.3 +/- 8.07% versus 21.80 +/- 16.84% P < 0.01), and that coronary dissection, atheromatous plaque and calcification as well as the colour of inner coronary artery had no relation with chronic restenosis. In conclusion, the elastic recoil is one of the important factors of chronic restenosis after PTCA.
ISSN:0366-6999
2542-5641