The diagnostic value of multi-slice helical CT and image post-progressing technique in laryngeal and hypopharyngeal carcinoma
1.Department of Medical Imaging, Taizhou Municipal Hospital, Taizhou University School of Medicine, Taizhou, 318000; 2.Department of Radiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015; 3.Department of ENT, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015
YANG Dengfa1,JIANG Yiyi2,FU Gangze2, et al. The diagnostic value of multi-slice helical CT and image post-progressing technique in laryngeal and hypopharyngeal carcinoma[J]. JOURNAL OF WEZHOU MEDICAL UNIVERSITY, 2014, 44(2): 122-126.
Abstract：Objective: To evaluate the diagnostic value of multi-slice helical CT and post-processing technique of two dimension MPR (multi-planar reconstruction), three-dimensional CTVE (CT virtual endoscopy) and three-dimensional transparent VRT (volume rendering technique) for the extent of regional invasion of laryngeal and hypopharyngeal carcinoma. Methods: Fifty-one patients with the laryngeal and hypopharyngeal carcinoma were prospectively examined with 16-slice helical CT, then MPR, CTVE, VRT images were reconstructed. The axial images, MPR and the combined image were respectively compared with the pathological results, and the CTVE, VRT image compared with electronic laryngoscope results. These results were studied in a blind way. Results: There were 31 patients with laryngeal carcinoma and 20 patients with hypopharyngeal carcinoma. The results were basic identical (P>0.05) when assessing the epiglottis, ventricular bands, aryepiglottic fold, vocal cord, anterior commissure, subglottic region, paralaryngeal space, sinus piriformis, cartilage laryngeal and lymph node between the axial, MPR, the combined image and pathological finding of operation. The results were also basic identical (P>0.05) when assessing the epiglottis, ventricular bands, aryepiglottic fold, vocal cord, anterior commissure, sinus piriformis between the CTVE image and electronic laryngoscope and assessing the sinus piriformis, ventricle of larynx and distortion of airway between the CTVE, VRT image and electronic laryngoscope. Conclusion: The multi-slice helical CT and post-processing technique can display the position, the shape, the size, the affected extent and metastasis of lymph node comprehensively, especially in the affected extent and metastasis of lymph node. The CTVE is simultaneously good complementary methods to conventional electronic laryngoscope.
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