Stereotactic localization with magnetic resonance imaging: A phantom study to compare the accuracy obtained using two-dimensional and three-dimensional data acquisitions

被引：59

作者：

Walton, L ^{[1
]}

Hampshire, A ^{[1
]}

Forster, DMC ^{[1
]}

Kemeny, AA ^{[1
]}

机构：

[1] ROYAL HALLAMSHIRE HOSP,NATL CTR STEREOTAC RADIOSURG,SHEFFIELD S10 2JF,S YORKSHIRE,ENGLAND

来源：

NEUROSURGERY | 1997年 / 41卷 / 01期

关键词：

magnetic resonance distortion; radiosurgery; stereotactic localization; stereotaxy;

D O I：

10.1097/00006123-199707000-00027

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

OBJECTIVE: To compare the accuracy of stereotactic localization using magnetic resonance imaging (Siemens 1.5-T Magnetom; Siemens, Erlangen, Germany) with two-dimensional and three-dimensional data acquisition techniques. METHODS: A phantom study was performed in which the coordinates of an array of rods were determined from images in both two-dimensional and three-dimensional studies and compared with measured values in a series of transverse, coronal, and sagittal images. RESULTS: The results demonstrated a distinct advantage in using three-dimensional acquisition; an error greater than 2 mm was identified in only 0.8% of the imaged volume, compared with 12% of the imaged volume in the two-dimensional study. CONCLUSION: The results indicate that more accurate stereotactic localization is achieved with a three-dimensional acquisition.

引用

页码：131 / 137

页数：7

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