Initial test of home-made transducer of multi-element intracardiac echocardiography

Rui Guo, Jing Huang, Hui Sheng Deng, Di Chuan Liu, Heng Hui Cai, Jin Yao Yang, Jiang Bin Liu, Jing Feng Guo, Yongping Zheng, Zhi Gang Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)

Abstract

Objective: To investigate the performance of the home-made multi-element intracardiac echocardiography imaging transducer, and to preliminarily test the multi functional intracardiac echocardiography system. Methods: Ultrasound phantom was employed to detect its resolution and cardiac structure was observed in vitro and in vivo. Capability to assess wall motion was investigated on acute myocardial infarction in canines (n=6). Results: This intracardiac echocardiography imaging transducer had 32 array with side-fire arrangement in which the diameter was 8F after catheterization. The longitude and lateral resolution was both 1.0 mm. Clear cardiac structure was observed in vitro and in vivo. After LAD ligation, wall thickness on the left anterior wall in end systolic stage decreased from (1.03±0.29) cm to (0.51 ± 0.22) cm. Similarly thickening fraction changed from (56.31±10.18)% to (9.23±1.52)% and max motion amplitude reduced from (0.58±0.08 cm to (0.13±0.03) cm (all P<0.01). Conclusion: This multielement intracardiac echocardiography imaging transducer meets the interventional grade in size, and its imaging performance comes up to the requirements of primary design.
Original languageEnglish
Pages (from-to)1500-1503
Number of pages4
JournalChinese Journal of Medical Imaging Technology
Volume25
Issue number8
Publication statusPublished - 20 Aug 2009

Keywords

  • Home-made
  • Intracardiac echocardiography imaging
  • Multi-element
  • Performance
  • Transducer

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Physiology (medical)

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