Rodrigues E A, Lahiri A, Hinge D A, Smith T, Crawley J C, Raftery E B
Eur J Nucl Med. 1987;12(12):617-9. doi: 10.1007/BF00284538.
We report the development of a new method for obtaining right ventriculograms using the peripheral intravenous infusion of a new tracer, 127Xe dissolved in saline. This tracer has a half life of 36 days, emits 172 keV and 203 keV photons, and is completely cleared by the lungs during pulmonary transit. The right ventricle can therefore be imaged free from interfering activity in the systemic circulation. The technique was used in 11 normal subjects and the results compared with those obtained using first pass and gated equilibrium blood pool angiography with 99mTc. Excellent images of the right ventricle were obtained and the tricuspid and pulmonary valve planes could be easily identified. This imaging technique has significant advantages over existing methods for the noninvasive assessment of right ventricular function.
我们报告了一种新方法的开发，该方法通过外周静脉输注一种新的示踪剂——溶解于盐水中的127Xe来获取右心室造影。这种示踪剂的半衰期为36天，发射172keV和203keV光子，在肺循环过程中完全被肺部清除。因此，右心室可以在不受体循环干扰活动的情况下成像。该技术应用于11名正常受试者，并将结果与使用99mTc进行首次通过和门控平衡血池血管造影所获得的结果进行比较。获得了右心室的优质图像，并且可以轻松识别三尖瓣和肺动脉瓣平面。这种成像技术在无创评估右心室功能方面比现有方法具有显著优势。
