INTRACARDIAC ULTRASONOGRAPHIC ASSESSMENT OF ATRIAL SEPTAL-DEFECT AREA - IN-VITRO VALIDATION AND TECHNICAL CONSIDERATIONS

被引：7

作者：

DEPRADA, JAV ^{[1
]}

JIANG, L ^{[1
]}

CHEN, MH ^{[1
]}

PADIAL, LR ^{[1
]}

GUERRERO, JL ^{[1
]}

SCHWAMMENTHAL, E ^{[1
]}

KING, ME ^{[1
]}

WEYMAN, AE ^{[1
]}

CHEN, CG ^{[1
]}

LEVINE, RA ^{[1
]}

机构：

[1] HARTFORD HOSP, DIV CARDIOL, HARTFORD, CT USA

来源：

AMERICAN HEART JOURNAL | 1995年 / 130卷 / 02期

关键词：

D O I：

10.1016/0002-8703(95)90444-1

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Assessment of atrial septal defect (ASD) size and shape is important for planning and guiding its transcatheter occlusion and can potentially be achieved by intracardiac ultrasonography (ICUS). ICUS accuracy, however, must first be established against stable standards and technical imaging requirements defined. We therefore used 10, 20, and 30 MHz ICUS catheters to examine 17 ASDs that were 0.16 to 6.7 cm(2) in area and were surgically created in excised ovine hearts with 10, 20, and 30 MHz ICUS catheters. ASD shape and area by ICUS were compared with direct video images of the actual ASD. In all instances minimal area by ICUS pullback agreed well with actual values (y = 1.04x + 0.2, SEE = 0.23 cm(2), r = 0.99) and corresponded well with defect shapes. The maximum angle between ultrasonography beam and septal plane allowing for complete ASD visualization was 20 degrees. The angle depended on transducer frequency and septal thickness. This new technique has potential value for the accurate assessment of ASD shape and size and may be especially useful in the setting of transcatheter occlusion.

引用

页码：302 / 306

页数：5

共 14 条

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