Multi-detector Computed Tomography에서 환자의 자세 변화에 따른 Esophageal Cancer 진단의 유용성

Diagnostic Availability of Esophageal Cancer with Change of Patient Position in Multi-detector Computed Tomography

Purpose The purpose of this study was to assess die utility of multi-detector computed tomography with a patient position change for die diagnosis of esophageal cancer. Material and methods Sixty nine patients with esophageal cancer underwent computed tomography(CT) in supine and prone positions. CT scans were performed in supine position at first, and in prone position followed. CT images were evaluated for perception esophageal cancer, findings of paraesophageal infiltration and presence of paraesophageal lymphadenopathy. The detectabilities of esophageal cancer, paraesophageal infiltration and paraesophageal lymphadenopathy were evaluated on prone position CT and compared with those of supine position CT, by scoring systems(1-3). In addition, findings on were correlated with those on endoscopy and post operatetive findings. Results The mean score for detectability of esophageal carcinoma on prone position CT (2.58±0.7367) was higher than on supine position CT(2.42±0.829). The mean score for detectability of paraesophageal infiltration was higher on prone position CT(2.91±0.29) than on supine position CT(2.65±0.48). The mean score for detectabiliry of paraesophageal infiltration in patient with esophagectomy was higher on prone position CT(2.39±0.85) than on supine position CT(2.06±0.73). Conclusion Multi-detector CT with prone position has advantages for evaluation of esophageal cancer by improving deteaability of mass lesion and paraesophageal infiltration.