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Improved longitudinal length accuracy of gross tumor volume delineation with diffusion weighted magnetic resonance imaging for esophageal squamous cell carcinoma
Hou, Dong-Liang1,2; Shi, Gao-Feng3; Gao, Xian-Shu1; Asaumi, Junichi4; Li, Xue-Ying5; Liu, Hui3; Yao, Chen5; Chang, Joe Y.6
关键词Esophageal squamous cell carcinoma Magnetic resonance imaging Diffusion weighted imaging Gross tumor volume
刊名RADIATION ONCOLOGY
2013-07-06
DOI10.1186/1748-717X-8-169
8
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Oncology ; Radiology, Nuclear Medicine & Medical Imaging
研究领域[WOS]Oncology ; Radiology, Nuclear Medicine & Medical Imaging
关键词[WOS]POSITRON-EMISSION-TOMOGRAPHY ; MRI ; LIVER ; PET
英文摘要

Background: To analyze the longitudinal length accuracy of gross tumor volume (GTV) delineation with diffusion weighted magnetic resonance imaging for esophageal squamous cell carcinoma (SCC).

Methods: Forty-two patients from December 2011 to June 2012 with esophageal SCC who underwent radical surgery were analyzed. Routine computed tomography (CT) scan, T2-weighted MRI and diffusion weighted magnetic resonance imaging (DWI) were employed before surgery. Diffusion-sensitive gradient b values were taken at 400, 600, and 800 s/mm(2). Gross tumor volumes (GTV) were delineated using CT, T2-weighted MRI and DWI on different b-value images. GTV longitude length measured using the imaging modalities listed above was compared with pathologic lesion length to determine the most accurate imaging modality. CMS Xio radiotherapy planning system was used to fuse DWI scans and CT images to investigate the possibility of delineating GTV on fused images.

Results: The differences between the GTV length according to CT, T2-weighted MRI and pathology were 3.63 +/- 12.06 mm and 3.46 +/- 11.41 mm, respectively. When the diffusion-sensitive gradient b-value was 400, 600, and 800 s/mm(2), the differences between the GTV length using DWI and pathology were 0.73 +/- 6.09 mm, -0.54 +/- 6.03 mm and -1.58 +/- 5.71 mm, respectively. DWI scans and CT images were fused accurately using the radiotherapy planning system. GTV margins were depicted clearly on fused images.

Conclusions: DWI displays esophageal SCC lengths most precisely when compared with CT or regular MRI. DWI scans fused with CT images can be used to improve accuracy to delineate GTV in esophageal SCC.

语种英语
WOS记录号WOS:000322399300001
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/66360
专题北京大学第一临床医学院_肿瘤化疗科
北京大学第一临床医学院_放射治疗科
北京大学第一临床医学院_医学统计室
作者单位1.Peking Univ, Hosp 1, Dept Radiat Oncol, Beijing 100034, Peoples R China
2.Capital Med Univ, Beijing Shijitan Hosp, Dept Radiat Oncol, Beijing 100038, Peoples R China
3.Hebei Med Univ, Hosp 4, Dept Radiol, Shijiazhuang 050011, Peoples R China
4.Okayama Univ, Grad Sch Med Dent & Pharmaceut Sci, Dept Oral & Maxillofacial Radiol, Field Tumor Biol, Okayama 7008525, Japan
5.Peking Univ, Hosp 1, Dept Med Stat, Beijing 100034, Peoples R China
6.Univ Texas MD Anderson Canc Ctr, Dept Radiat Oncol, Houston, TX 77030 USA
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Hou, Dong-Liang,Shi, Gao-Feng,Gao, Xian-Shu,et al. Improved longitudinal length accuracy of gross tumor volume delineation with diffusion weighted magnetic resonance imaging for esophageal squamous cell carcinoma[J]. RADIATION ONCOLOGY,2013,8.
APA Hou, Dong-Liang.,Shi, Gao-Feng.,Gao, Xian-Shu.,Asaumi, Junichi.,Li, Xue-Ying.,...&Chang, Joe Y..(2013).Improved longitudinal length accuracy of gross tumor volume delineation with diffusion weighted magnetic resonance imaging for esophageal squamous cell carcinoma.RADIATION ONCOLOGY,8.
MLA Hou, Dong-Liang,et al."Improved longitudinal length accuracy of gross tumor volume delineation with diffusion weighted magnetic resonance imaging for esophageal squamous cell carcinoma".RADIATION ONCOLOGY 8(2013).
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