Target definition in radiotherapy of prostate cancer using magnetic resonance imaging only workflow

被引：17

作者：

Gunnlaugsson, Adalsteinn ^{[1
]}

Persson, Emilia ^{[1
,2
]}

Gustafsson, Christian ^{[1
,2
]}

Kjellen, Elisabeth ^{[1
]}

Ambolt, Petra ^{[1
]}

Engelholm, Silke ^{[1
]}

Nilsson, Per ^{[1
]}

Olsson, Lars E. ^{[1
,2
]}

机构：

[1] Skane Univ Hosp, Dept Hematol Oncol & Radiat Phys, Lund, Sweden

[2] Lund Univ, Dept Translat Sci, Med Radiat Phys, Malmo, Sweden

来源：

PHYSICS & IMAGING IN RADIATION ONCOLOGY | 2019年 / 9卷

关键词：

D O I：

10.1016/j.phro.2019.03.004

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

In magnetic resonance (MR) only radiotherapy, the target delineation needs to be performed without computed tomography (CT). We investigated in thirteen patients with prostate cancer, how the clinical target volume (CTV) was affected, when the target delineation procedure was changed from using both CT and MR images to using MR images only. The mean volume of the CTVCT/MR was 61.0 cm(3) as compared to 49.9 cm(3) from MR-only based target delineation, corresponding to an average decrease of 18%. Our results show that CTVMR-only was consistently smaller than CTVCT/MR, which has to be taken into consideration before clinical commissioning of MR-only radiotherapy.

引用

页码：89 / 91

页数：3

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