Research of application of magnetic resonance imaging in diagnosis and preoperative staging of rectal cancer

doi:10.3877/cma.j.issn.2095-3224.2013.06.04

Abstract

Abstract:

Objective

To evaluate the accuracy of 3.0T magnetic resonance imaging(MRI)for preoperative T/N staging of rectal cancer and distance from the anal verge to the tumor.

Methods

3.0T MRI was performed in 53 patients with primary rectal cancer prior to surgery, and assess its value in T/N staging.The final pathological result of surgical specimen was taken as standard.To analyze the correlation between MRI and pathology results in respect of measuring the distance from tumor to anus margin.

Results

The overall accuracy of T-staging and N-staging was 83.1% and 67.9%.There was no obvious difference between the result of T/N staging with MRI and postoperative histological staging.There was no significant statistical difference between MRI and resected specimens in determining the distance from the anal verge to tumor.

Conclusions

MRI could accurately evaluate preoperative T/N-staging of rectal cancer and assess the distance between the anal verge and the carcinoma.Therefore MRI is more reliable for preoperative treatment and selecting the optimum surgical modality for individual patient.

Key words: Rectal neoplasms, Magnetic resonance imaging, Neoplasm staging

Wen-feng DU, Yan-ting FAN, Dao-gui YANG. Research of application of magnetic resonance imaging in diagnosis and preoperative staging of rectal cancer[J]. Chinese Journal of Colorectal Diseases(Electronic Edition), 2013, 02(06): 296-300.

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URL: https://zhjzcjbdzzz.cma-cmc.com.cn/EN/10.3877/cma.j.issn.2095-3224.2013.06.04

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Figures/Tables 4

References 11

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MRI T分期	临床病理分期				合计
MRI T分期	T1	T2	T3	T4	合计
T1	2	1	0	0	3
T2	1	14	3	0	18
T3	0	3	24	0	27
T4	0	0	1	4	5
合计	?	?	?	?	53

MRI T分期	临床病理分期				合计
MRI T分期	T1	T2	T3	T4	合计
T1	2	1	0	0	3
T2	1	14	3	0	18
T3	0	3	24	0	27
T4	0	0	1	4	5
合计	?	?	?	?	53

MRI N分期	临床病理分期
MRI N分期	N0	N1	N2	合计
N0	14	4	1	19
N1	2	15	5	22
N2	2	3	7	12
合计	?	?	?	53

MRI N分期	临床病理分期
MRI N分期	N0	N1	N2	合计
N0	14	4	1	19
N1	2	15	5	22
N2	2	3	7	12
合计	?	?	?	53

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