Sandler D A, Martin J F
Lancet. 1985 Mar 23;1(8430):665-7. doi: 10.1016/s0140-6736(85)91328-5.
The accuracy of liquid crystal colour thermography and clinical examination was compared with that of X-ray venography in 80 patients clinically suspected of having unilateral, lower-limb, deep-vein thrombosis. The clinical examination was not helpful in diagnosis. Of the 35 patients with confirmed deep-vein thrombosis, 34 had a positive thermogram, giving a sensitivity of 97%. 17 false-positive thermograms gave a specificity of 62%. The predictive value of a negative thermogram was 96.5%. Liquid crystal colour thermography is a quick, inexpensive, non-invasive investigation that might be useful as a screening test in patients suspected of having unilateral, lower-limb, deep-vein thrombosis. A diagnostic scheme starting with liquid crystal thermography and followed by 99mTc venoscanning might obviate the need for X-ray venography in almost 80% of patients with suspected deep-vein thrombosis.
对80例临床怀疑单侧下肢深静脉血栓形成的患者，比较了液晶彩色热成像和临床检查与X线静脉造影的准确性。临床检查对诊断无帮助。在35例确诊为深静脉血栓形成的患者中，34例热成像呈阳性，敏感性为97%。17例假阳性热成像结果使特异性为62%。热成像阴性的预测值为96.5%。液晶彩色热成像是一种快速、廉价、非侵入性的检查方法，可能作为怀疑单侧下肢深静脉血栓形成患者的筛查试验。以液晶热成像开始，随后进行99mTc静脉扫描的诊断方案，可能使近80%疑似深静脉血栓形成的患者无需进行X线静脉造影。
