Radiation treatment planning for bladder cancer: A comparison of cystogram localisation with computed tomography

The Value of Three-Dimensional Radiotherapy Planning in Advanced Carcinoma of the Urinary Bladder Based on Computed Tomography

“…In this work the target was not defined. Rothwell et al (4) examined 60 patients with bladder cancer with CT and found inadequate coverage of the target volume in 85% after conventional planning. Hobday et al ( 5 ) found inadequate tumour coverage in 9 out of 48 (19%) examined patients with bladder and prostate cancer.…”

The Place of Radiation Therapy as Definitive Treatment of Bladder Cancer

“…C T planning is a more modern and accurate method of visualizing the position of the bladder and any extravesical tumor. 39 However, extravesical tumor may not be imaged reliably, particularly when the. C T is performed after voiding and without contrast.…”

“…In many cases, the interstitial radiation is preceded by a short course of external beam radiotherapy. In the French centers, the majority of patients undergo a partial cystectomy directly prior to the interstitial radiation.17, 39 For category T 1 G3 bladder cancer, bladder relapse rates of 15%-28% are reported with actuarial fiveyear survival rates of 70%-80%.47-5" Interstitial radiation in category T 2 bladder cancer results in a relapse rates of 7%-32% and actuarial five-year survival rate of 50%-76%. [47][48][49][50] In an unpublished study of 44 category T3a bladder cancers treated by Wijnmaalen in Rotterdam, a bladder relapse rate of 39% was recorded, with a five-year survival rate of 61 %.…”

The Place of Radiation Therapy as Definitive Treatment of Bladder Cancer

“…C T planning is a more modern and accurate method of visualizing the position of the bladder and any extravesical tumor. 39 However, extravesical tumor may not be imaged reliably, particularly when the. C T is performed after voiding and without contrast.…”