Pushparajah Kuberan, Miller Owen I, Rawlins Debbie, Barlow Anna, Nugent Kelly, Simpson John M
Department of Congenital Heart Disease, Evelina Children's Hospital, Guy's & St Thomas' NHS Foundation Trust, London, United Kingdom.
Cardiol Young. 2012 Apr;22(2):170-7. doi: 10.1017/S1047951111000977. Epub 2011 Aug 19.
To assess the quality of imaging modalities of a new micro multiplane transoesophageal echocardiogram probe.
This is a prospective study of micro transoesophageal echocardiogram S8-3t probe used at a single institution between 15 December, 2009 and 15 March, 2010. The images were compared with standard paediatric or adult probes where possible. Assessors prospectively rated imaging quality - two dimensional, colour flow imaging, pulse wave, and continuous wave Doppler - with a subjective 4-point scale (1 = poor to 4 = excellent).
A total of 24 studies were performed on 23 patients, with a median weight = 11.7 kilograms (2.6-72 kilograms) and a median age of 3 years (0.16-60 years). Of the 23 patients, one neonate (2.8 kilograms) had transient bradycardia on probe insertion. Imaging in patients less than 10 kilograms was of full diagnostic value and new information was obtained in eight out of ten patients. Pulse wave and continuous wave Doppler was consistently good across all weight groups. There were high frame rates and good imaging quality to a depth of 4-6 centimetres in all studies. A comparison with a larger alternative probe was available for 12 studies (weight 11.9-72 kilograms). The median micro transoesophageal two-dimensional image quality score was 3 (2-4) and 4 (3-4) with the comparative probe. For the 10- to 30-kilogram group, image quality with the micro transoesophageal echocardiogram probe was judged as inferior to larger standard probes. Adult sized patients had good imaging of near the field, allowing guidance for percutaneous device closure of the atrial septum.
The micro multiplane transoesophageal echocardiogram probe provides imaging of diagnostic quality in neonates. In larger patients, it offers good imaging of near field structures. In the intermediate-sized child (10-30 kilograms), standard paediatric probes provide better imaging.
评估一种新型微型多平面经食管超声心动图探头的成像模式质量。
这是一项对2009年12月15日至2010年3月15日在单一机构使用的微型经食管超声心动图S8 - 3t探头进行的前瞻性研究。在可能的情况下，将图像与标准儿科或成人探头进行比较。评估人员采用主观的4分制（1 = 差至4 = 优）对成像质量进行前瞻性评分，包括二维、彩色血流成像、脉冲波和连续波多普勒成像。
共对23例患者进行了24项研究，患者体重中位数为11.7千克（2.6 - 72千克），年龄中位数为3岁（0.16 - 60岁）。23例患者中，1例新生儿（2.8千克）在插入探头时出现短暂性心动过缓。体重小于10千克的患者成像具有完全诊断价值，10例患者中有8例获得了新信息。所有体重组的脉冲波和连续波多普勒成像一直良好。在所有研究中，帧频高，深度达4 - 6厘米时成像质量良好。12项研究（体重11.9 - 体重72千克）可与更大的替代探头进行比较。微型经食管二维图像质量评分中位数为3（2 - 4），与之比较的探头评分为4（3 - 4）。对于10至30千克组，微型经食管超声心动图探头的图像质量被判定低于较大的标准探头。成年患者近场成像良好，可为经皮房间隔缺损封堵装置提供引导。
微型多平面经食管超声心动图探头可为新生儿提供具有诊断质量的成像。对于较大患者，它能对近场结构提供良好成像。对于中等体型儿童（10 - 30千克），标准儿科探头成像效果更好。
