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学科主题: 临床医学
题名:
Preliminary study of whole-body diffusion-weighted imaging in detecting pulmonary metastatic lesions from clear cell renal cell carcinoma: comparison with CT
作者: Liu, Jing; Yang, Xuedong; Li, Feiyu; Wang, Xiaoying; Jiang, Xuexiang
关键词: Whole-body diffusion-weighted imaging (DWI) ; renal cell carcinoma (RCC) ; pulmonary metastases
刊名: ACTA RADIOLOGICA
发表日期: 2011-11-01
DOI: 10.1258/ar.2011.110121
卷: 52, 期:9, 页:954-963
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Radiology, Nuclear Medicine & Medical Imaging
研究领域[WOS]: Radiology, Nuclear Medicine & Medical Imaging
关键词[WOS]: POSITRON-EMISSION-TOMOGRAPHY ; SCINTIGRAPHY ; LUNG ; MRI
英文摘要:

Background: Whole-body diffusion-weighted imaging (DWI) has been widely used in detecting malignant metastases, including pulmonary metastases.

Purpose: To evaluate the possible utility of whole-body DWI in detecting pulmonary metastases of patients with clear cell renal cell carcinoma (ccRCC) and compare the exact differences between MR and CT in detecting pulmonary lesions.

Material and Methods: Whole-body DWI and chest CT examinations were performed on nine consecutive patients (8 men and 1 woman) with histologically confirmed ccRCC and possible metastatic lesions before chemotherapy.

Results: CT and MR demonstrated pulmonary metastases in seven patients and no metastatic lesions in two patients. The numbers of pulmonary metastases detected on CT, DWI-only, T1WI-only and DWI in combination with T1WI were 83, 35, 34 and 39, respectively. Metastases with a diameter above 1.0 cm could all be detected by DWI and a diameter above 0.7 cm could all be detected by DWI in combination with T1WI. Significant differences were obtained both for correlationship between diameter and detection rates of DWI and T1WI by using Spearman rank correlation analysis.

Conclusion: Although MR cannot be considered a replacement for CT in pulmonary metastases from ccRCC, whole-body DWI, with the combination of T1 dual echo, might be helpful for the evaluation of tumor response to chemotherapy in the follow-up of patients when the diameter of the pulmonary metastases is over 1.0 cm.

语种: 英语
WOS记录号: WOS:000297489200004
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/61594
Appears in Collections:北京大学第一临床医学院_放射治疗科_期刊论文

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作者单位: Peking Univ, Hosp 1, Dept Radiol, Beijing 100871, Peoples R China

Recommended Citation:
Liu, Jing,Yang, Xuedong,Li, Feiyu,et al. Preliminary study of whole-body diffusion-weighted imaging in detecting pulmonary metastatic lesions from clear cell renal cell carcinoma: comparison with CT[J]. ACTA RADIOLOGICA,2011,52(9):954-963.
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