Faletra F, De Chiara F, Corno R, Passini L
Cardiology Department, Niguarda Ca'Granda Hospital, Milan, Italy.
Heart. 1996 Jun;75(6):609-13. doi: 10.1136/hrt.75.6.609.
To evaluate how often multiplane transoesophageal echocardiography yields new or complementary data in mitral prostheses in comparison with the exclusive use of biplane imaging.
73 consecutive patients with mitral prostheses who underwent multiplane transoesophageal echocardiograpy between January 1993 and December 1994.
Biplane images (transverse and longitudinal planes) and multiplane images (transverse, longitudinal, and intermediate planes) were recorded on two separate videotapes. The data provided by multiplane transoesophageal echocardiography were evaluated as (a) new data (abnormalities missed by biplane imaging); (b) complementary data (better delineating lesions already visualised by biplane imaging); or (c) redundant data (data already provided by biplane imaging).
Multiplane transoesophageal echocardiography revealed new abnormalities in seven patients (9.5%) (thrombi in three and paraprosthetic leaks in the remaining four) and complementary data in nine (12.3%). In patients with paraprosthetic regurgitation, the possibility of continuously visualising the sewing ring by means of sequential angulations allowed the circumferential extension of the leak to be measured. In seven patients with paravalvar regurgitation who underwent surgery, the extension of the leak as measured by the multiplane approach closely corresponded with the surgical data.
In comparison with the exclusive use of biplane imaging, the multiplane approach added new or complementary data in a significant proportion of patients with mitral prostheses. The ability to obtain the sequential adjacent planes allowed a more reliable appraisal of the extension of the leak and other abnormalities.
评估与单纯使用双平面成像相比，多平面经食管超声心动图在二尖瓣人工瓣膜检查中产生新的或补充性数据的频率。
1993年1月至1994年12月期间连续73例接受多平面经食管超声心动图检查的二尖瓣人工瓣膜患者。
双平面图像（横向和纵向平面）和多平面图像（横向、纵向和中间平面）分别记录在两盘录像带上。多平面经食管超声心动图提供的数据被评估为：（a）新数据（双平面成像遗漏的异常）；（b）补充数据（更好地描绘双平面成像已显示的病变）；或（c）冗余数据（双平面成像已提供的数据）。
多平面经食管超声心动图在7例患者（9.5%）中发现新的异常（3例有血栓，其余4例有瓣周漏），9例（12.3%）发现补充数据。在有瓣周反流的患者中，通过连续角度变化持续观察缝合环的可能性使得能够测量漏口的周向范围。在7例接受手术的瓣周反流患者中，多平面方法测量的漏口范围与手术数据密切相符。
与单纯使用双平面成像相比，多平面方法在相当一部分二尖瓣人工瓣膜患者中增加了新的或补充性数据。获取连续相邻平面的能力使得能够更可靠地评估漏口及其他异常的范围。
