Comparative study on correlation between ADC values measured by three methods and pathological features in rectal adenocarcinoma

ZHENG Xin; ZHANG Hongjiang; ZHAO Ying; WU Kunhuanbsp

doi:10.19732/j.cnki.2096-6212.2018.06.015

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Comparative study on correlation between ADC values measured by three methods and pathological features in rectal adenocarcinoma

更新时间：2025-12-15

- Comparative study on correlation between ADC values measured by three methods and pathological features in rectal adenocarcinoma
- Vol. 27, Issue 6, Pages: 499-503(2018)
- 作者机构：
  
  1. 云南省景洪市人民医院放射科，云南景洪,666100
  2. 云南省第一人民医院磁共振科,云南,昆明,650032
- 作者简介：
- 基金信息：
- DOI：10.19732/j.cnki.2096-6212.2018.06.015
  CLC：
- Published Online：16 January 2019，
  
  Published：16 January 2019
- 稿件说明：
移动端阅览
郑欣,张宏江,赵英,等. 不同测量方法所得直肠腺癌肿块ADC值与其病理学特征的对照研究[J]. 肿瘤影像学, 2018, 27(6): 499-503 https://doi.

org/10.19732/j.cnki.2096-6212.2018.06.015
郑欣,张宏江,赵英,等. 不同测量方法所得直肠腺癌肿块ADC值与其病理学特征的对照研究[J]. 肿瘤影像学, 2018, 27(6): 499-503 https://doi. DOI： 10.19732/j.cnki.2096-6212.2018.06.015.

org/10.19732/j.cnki.2096-6212.2018.06.015 DOI：

摘要

目的：

探讨采用3种表观扩散系数（apparent diffusion coefficient，ADC）测量方法所得不同病理学分化程度直肠腺癌的ADC值与病理学检查结果的相关性。

方法：

对44例直肠腺癌患者行磁共振成像（magnetic resonance imaging，MRI）扫描，采用3种不同感兴趣区（region of interest，ROI）选取方法测量肿块ADC值。方法Ⅰ：选择增强序列强化最明显的部位作为ROI，在ADC图相应区域勾勒强化区范围并测量ADC值。方法Ⅱ：选择指数表观扩散系数（exponential apparent diffusion coefficient，eADC）图上直肠癌病灶内信号最明亮部位，沿其边缘勾勒，测量ADC值。方法Ⅲ：在ADC图上选择肿块最大层面，并沿病灶边缘勾勒病灶范围，测量ADC值。对比分析ADC值与病理学分化程度的相关性。

结果：

方法Ⅰ所得数据与病理学检查结果有相关性（

=0.718，

=0.000）；方法Ⅱ所得数据与病理学检查结果有相关性（

=0.637，

=0.000）；方法Ⅲ所得数据与病理学检查结果有相关性（

=0.643，

=0.000）。

结论：

方法Ⅰ测量所得ADC值与直肠癌病理学分化程度的相关性最好。

Abstract

Objective:

To investigate the correlation between apparent diffusion coefficient (ADC) measured by three methods and pathological results in rectal adenocarcinoma.

Methods:

A total of 44 rectal adenocarcinoma patients who underwent MRI before operation were retrospectively reviewed. Three methods were used to select the region of interest (ROI). MethodⅠ: the

most significantly enhanced region of lesions in the enhancement images was chosen as ROI. MethodⅡ: the brightest signal region of lesions in exponential apparent diffusion coefficient (eADC) image was chosen as ROI. MethodⅢ: the lesions largest area in ADC map was chosen as ROI. The correlation between ADC values measured by three methods and pathological results was compared.

Results:

The correlation r values between ADC values measured by three methods and pathological results were

1=0.718 (

=0.000)

2=0.637 (

=0.000) and

3=0.643 (

=0.000)

respectively.

Conclusion:

The correlation between ADC value measured by method Ⅰ and pathological results is the best.

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