Transcranial duplex sonography in the detection of patent foramen ovalle
Transcranial duplex sonography in the detection of patent foramen ovalle
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DOI：
10.1148/radiol.2253011572
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发表时间：
2002-12-01
期刊：
影响因子：
19.7
通讯作者：
Hölscher, T
中科院分区：
文献类型：
--
作者：
Blersch, WK;Draganski, BM;Hölscher, T
目的：比较对比剂增强经颅彩色编码超声（c-TCCS）与经食管超声心动图（c-TEE）检测心脏右至左分流的敏感性。材料与方法：连续收治40例脑卒中或短暂性脑缺血发作患者，采用c-TCCS和c-TEE进行检测。在Valsalva演习结束后的25秒内，对高强度瞬态信号（HITS）进行计数，并将HITS的数量分为四类（零HITS， 1至10 HITS， bbb10 HITS无幕和幕）之一。用Fisher精确检验计算出有统计学意义的差异。结果：采用c-TCCS和c-TEE方法计数命中21例（52%）。在这两种测试中，15例（38%）患者未计数到HITS。在2例（5%）患者中，c-TEE未计数HITS，但1例患者计数了3次HITS，另1例患者计数了5次HITS。在2例（5%）患者中，c-TCCS未计数HITS，但c-TEE可见小卵圆孔未闭（PFO）。c-TCCS的敏感性为91%(21 / 23)，特异性为88%（15 / 17）。在23例接受c-TCCS检查的患者中，14例（61%）患者为I型PFO；7例（30%）为2类PFO；2例（9%）为3类PFO。I型PFO患者的平均HITS计数为4.4,2型PFO患者的平均HITS计数为27.6。结论：c-TCCS是一种灵敏的无创检测心脏右至左分流的方法，其灵敏度与c-TEE相当。(c) rsna， 2002年。
PURPOSE: To determine the sensitivity of contrast material-enhanced transcranial color-coded sonography (c-TCCS) compared with that of contrast-enhanced transesophageal echocardiography (c-TEE) for detection of cardiac right-to-left shunt. MATERIALS AND METHODS: Forty consecutive patients with stroke or transient ischemic attack were admitted to the hospital and were examined by using c-TCCS and c-TEE. High-intensity transient signals (HITS) were counted for 25 seconds after the end of the Valsalva maneuver, and the numbers of HITS were classified in one of four categories (zero HITS, one to 10 HITS, >10 HITS without curtain, and curtain). A statistically significant difference was calculated with the Fisher exact test.RESULTS: HITS were counted in 21 (52%) patients by using c-TCCS and c-TEE. With both tests, no HITS were counted in 15 (38%) patients. In two (5%) patients, no HITS were counted with c-TEE but three HITS in one patient and five HITS in the other were counted with c-TCCS. In two (5%) patients, no HITS were counted with c-TCCS, but a small patent foramen ovale (PFO) was seen at c-TEE. With c-TCCS, the sensitivity was 91% (21 of 23) and the specificity was 88% (15 of 17). In 23 patients examined with c-TCCS, 14 (61%) patients had category I PFO; seven (30%) patients, category 2 PFO; and two (9%) patients, category 3 PFO. Mean HITS count in patients with category I PFO was 4.4 and that for those with category 2 PFO was 27.6.CONCLUSION: c-TCCS is a sensitive noninvasive method for detecting cardiac right-to-left shunt and is as sensitive as c-TEE. (C) RSNA, 2002.