PMID- 15171453 OWN - NLM STAT- MEDLINE DCOM- 20040730 LR - 20191210 IS - 0022-7854 (Print) IS - 0022-7854 (Linking) VI - 41 IP - 1 DP - 2004 Feb TI - [Usefulness of 201Tl SPECT in the predication of mediastinal lymph nodes metastasis in patients with non small cell lung carcinoma (NSCLC)]. PG - 1-7 AB - Predictivity of mediastinal lymph nodes metastasis of 201Tl SPECT were examined before operation in 113 patients with non-small cell lung cancer (69 adenocarcinoma, 31 squamous cell carcinoma, 10 large cell carcinoma, 2 bronchiolo-alveolar carcinoma, 1 neuroendocrine cell carcinoma). Patients were classified into two groups, with or without lymph nodes metastasis according to the pathological diagnosis. We calculated parameters of 201Tl SPECT early ratio, delayed ratio, retention index (RI) and maximal diameters. In addition, we calculated optimal cut-off value of RI to estimate the mediastinal lymph nodes metastasis. Mediastinal lymph nodes metastasis was confirmed pathologically in 62 patients. ER and DR did not show any statistical significance between two groups. Maximal diameters of primary tumor were also comparable between two groups. RI was significantly higher in mediastinal lymph node metastasis positive group compared to that in mediastinal lymph node metastasis negative group. The sensitivity (Sen), specificity (Spe), positive predictive value (PPV), negative predictive value (NPV) and accuracy (Acc) of 201Tl SPECT were 82.2%, 82.3%, 85.0%, 79.2% and 82.3%. These parameters were similar of higher than 72.6%, 82.4%, 83.3%, 71.2% and 77.0% of chest CT. The RI of 201Tl SPECT was useful tool for predicting lymph nodes metastasis in non-small cell lung cancer. The optimum cut-off value of RI in the prediction of mediastinal lymph nodes metastasis was 35%. We should take into account of upstaging in cases with higher RI (>35%). FAU - Fujita, Seigo AU - Fujita S AD - Department of Radiology, Miyazaki Medical College. Iamfine@fc.miyazaki-med.ac.jp FAU - Nagamachi, Shigeki AU - Nagamachi S FAU - Nishii, Ryuichi AU - Nishii R FAU - Futami, Shigemi AU - Futami S FAU - Nakada, Hiroshi AU - Nakada H FAU - Kuroki, Masaomi AU - Kuroki M FAU - Ono, Seiji AU - Ono S FAU - Tamura, Shozo AU - Tamura S FAU - Matsuzaki, Yasunori AU - Matsuzaki Y FAU - Onizuka, Toshio AU - Onizuka T FAU - Asada, Yujiro AU - Asada Y FAU - Kataoka, Hiroaki AU - Kataoka H LA - jpn PT - Evaluation Study PT - Journal Article PL - Japan TA - Kaku Igaku JT - Kaku igaku. The Japanese journal of nuclear medicine JID - 2985202R RN - 0 (Radiopharmaceuticals) RN - 37CB58V15B (thallium chloride) RN - AD84R52XLF (Thallium) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Carcinoma, Non-Small-Cell Lung/*diagnostic imaging/secondary MH - Female MH - Humans MH - Lung Neoplasms/*pathology MH - Lymphatic Metastasis/diagnostic imaging MH - Male MH - Mediastinum MH - Middle Aged MH - Predictive Value of Tests MH - *Radiopharmaceuticals MH - *Thallium MH - *Tomography, Emission-Computed, Single-Photon EDAT- 2004/06/03 05:00 MHDA- 2004/07/31 05:00 CRDT- 2004/06/03 05:00 PHST- 2004/06/03 05:00 [pubmed] PHST- 2004/07/31 05:00 [medline] PHST- 2004/06/03 05:00 [entrez] PST - ppublish SO - Kaku Igaku. 2004 Feb;41(1):1-7.