Variations in cone beam CT numbers as a function of patient size: In vivo demonstration in bladder cancer patients

被引：7

作者：

Mullen, Ajit ^{[1
,4
]}

Kron, Tomas ^{[1
,4
]}

Thomas, Jessica ^{[2
]}

Foroudi, Farshad ^{[3
,5
]}

机构：

[1] Peter MacCallum Canc Ctr, Dept Phys Sci, Melbourne, Vic 3002, Australia

[2] Peter MacCallum Canc Ctr, Ctr Biostat & Clin Trials, Melbourne, Vic 3002, Australia

[3] Peter MacCallum Canc Ctr, Dept Radiat Oncol, Melbourne, Vic 3002, Australia

[4] RMIT Univ, Melbourne, Vic, Australia

[5] Univ Melbourne, Dept Pathol, Parkville, Vic 3052, Australia

来源：

JOURNAL OF MEDICAL IMAGING AND RADIATION ONCOLOGY | 2010年 / 54卷 / 05期

关键词：

bladder cancer; cone-beam CT; dose calculation; Hounsfield numbers; radiation therapy;

D O I：

10.1111/j.1754-9485.2010.02203.x

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

P>We determined Hounsfield numbers, using cone beam CT (CBCT), in the bladder of 27 muscle invasive bladder cancer patients treated with online adaptive radiotherapy using a Varian linear accelerator. The CBCT number of urine was found to increase by 130 from the thinnest to the largest patient (249 mm to 346 mm average diameter) demonstrating the effect of patient size on Hounsfield number in CBCT in vivo.

引用

页码：505 / 507

页数：3

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