Underwood S R, Walton S, Ell P J, Jarritt P H, Emanuel R W, Swanton R H
Eur J Nucl Med. 1985;10(7-8):332-7. doi: 10.1007/BF00251306.
ECG-gated single-photon emission-computed tomography of the intracardiac blood pool is a new technique that has not previously been widely applied. It involves the acquisition of ECG-gated images of the intracardiac blood pools labelled with sodium pertechnetate Tc 99m in 32 projections around the left-anterior hemithorax using a rotating gamma camera. From these images, tomographic sections are reconstructed orthogonal to the long axis of the left ventricle. The heart is therefore imaged three dimensionally, and more extensive information is obtained than in planar radionuclide ventriculography where imaging is usually restricted to only a single projection. Both structure and function can be studied, and the left-ventricular volume and ejection fraction, and wall motion are obtained. Of 50 patients studied, 7 cases are illustrated in order to show normal findings, examples of wall motion that were not shown by planar-contrast and radionuclide ventriculography, examples of the localisation of ventricular hypertrophy, and a comparison between blood-pool and 201TI myocardial tomography.
心电门控心腔内血池单光子发射计算机断层扫描是一项此前未被广泛应用的新技术。它涉及使用旋转γ相机，在左前胸半侧周围的32个投影中采集用锝99m高锝酸钠标记的心腔内血池的心电门控图像。从这些图像中，重建与左心室长轴正交的断层切片。因此，心脏可进行三维成像，与平面放射性核素心室造影相比，能获得更广泛的信息，平面放射性核素心室造影通常仅局限于单一投影成像。结构和功能均可研究，还可获得左心室容积、射血分数及壁运动情况。在研究的50例患者中，展示了7例以显示正常表现、平面造影和放射性核素心室造影未显示的壁运动示例、心室肥厚定位示例以及血池与铊201心肌断层扫描的比较。
