Comparison Between Manual and Semiautomated Volumetric Measurements of Pituitary Adenomas

被引：5

作者：

Al Hinai, Qasim ^{[1
]}

Mok, Kelvin ^{[1
]}

Zeitouni, Anthony ^{[2
]}

Gagnon, Bruno ^{[3
]}

Ajlan, Abdul Razag ^{[1
]}

Rivera, Juan ^{[4
]}

Tewfik, Marc ^{[2
]}

Sirhan, Denis ^{[1
]}

机构：

[1] McGill Univ, Div Neurosurg, Montreal, PQ H3A 2B4, Canada

[2] McGill Univ, Div Otolaryngol Head & Neck, Montreal, PQ H3A 2B4, Canada

[3] McGill Univ, Div Med & Oncol, Montreal, PQ H3A 2B4, Canada

[4] McGill Univ, Div Endocrinol, Montreal, PQ H3A 2B4, Canada

来源：

SKULL BASE-AN INTERDISCIPLINARY APPROACH | 2011年 / 21卷 / 06期

关键词：

Pituitary adenoma; volumetric measurement; correlation coefficient; tumor size; GAMMA-KNIFE RADIOSURGERY; GLAND VOLUME;

D O I：

10.1055/s-0031-1287677

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

Linear measurements have many limitations. The aim of this study is to compare manual and semiautomated volumetric measurements of pituitary adenomas. Magnetic resonance imaging (MRI) scans of 38 patients with pituitary adenomas were analyzed. Preoperative MRI was acquired on a 1.5 T. MRI volumes of the pituitary adenomas were obtained by two methods: manual (MA) and semiautomated (SA). The concurrent validity for SA and MA methods on 38 patients in the form of correlation coefficient was 0.97 (p < 0.0001). The intraobserver and the interobserver correlation coefficients for SA volumes were both 0.98, as for the intraobserver MA volumes were 0.98. Although the results of both methods are comparable, analysis of volumetric measurements by SA method is more time-efficient than MA segmentation. Precision in volumetric measurement techniques is likely to increase reliability of posttherapeutic monitoring of pituitary adenomas.

引用

页码：365 / 371

页数：7

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