CT-based optimized planning for transperineal prostate implant with customized template

A computerized planning procedure has been developed for CT-guided transperineal prostate implants. The segment for custom planning of perineal needle orientations allows placement of 1-125 seeds in the entire prostate gland while avoiding the pubic bones. Least-squares optimization (LSO) is used to...

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Veröffentlicht in:	International journal of radiation oncology, biology, physics biology, physics, 1991-07, Vol.21 (2), p.483-489
Hauptverfasser:	Roy, Jitendra N., Wallner, Kent E., Chiu-Tsao, Sou-Tung, Anderson, Lowell L., Ling, C.Clifton
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences Brachytherapy - instrumentation CT-based implant planning Humans I-125 implants Least-squares optimization Male Medical sciences Prostate implant Prostatic Neoplasms - radiotherapy Radiotherapy Planning, Computer-Assisted Template Tomography, X-Ray Computed Transperineal implants Tumors
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Beschreibung
Zusammenfassung:	A computerized planning procedure has been developed for CT-guided transperineal prostate implants. The segment for custom planning of perineal needle orientations allows placement of 1-125 seeds in the entire prostate gland while avoiding the pubic bones. Least-squares optimization (LSO) is used to obtain the seed-loading pattern along the needles. The optimized seed distribution produces a better fit between treatment and target volumes than that obtained from our previous manual technique. Also, the present semi-automatic technique reduces planning time by about a factor of 10 compared to that of the manual approach.
ISSN:	0360-3016 1879-355X
DOI:	10.1016/0360-3016(91)90800-J