The retrograde urethrogram is more accurate than ct in identifying the caudal prostate margin for conformal treatment planning

Melian, Edward; Kutcher, Gerald J.; Leibel, Steven A.; Zelefsky, M.; Baldwin, B.; Fuks, Zvi

doi:10.1016/0360-3016(93)90646-d

Cited by 39 publications

(1 citation statement)

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“…However, the true accuracy of the treatment can only be judged in this way if the assumption that the position of the prostate and/or the bladder within the pelvis is more or less fixed is correct. The question of to what extent the bony structures of the pelvis repre sent the true position of the prostate or the bladder in the field, has been addressed by several authors (4,5,15,20,28), using l25I seed implants or CT scans to compare the position of the prostate to that of the bony pelvis. Results of these studies have been summarized in Table 5.…”

Section: Small Pelvic Fields For Urological Cancermentioning

confidence: 99%

A quality control study of the accuracy of patient positioning in irradiation of pelvic fields

Creutzberg

Althof

Hoog

et al. 1996

International Journal of Radiation Oncology*Biology*Physics

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Section: Small Pelvic Fields For Urological Cancermentioning

confidence: 99%

A quality control study of the accuracy of patient positioning in irradiation of pelvic fields

Creutzberg

Althof

Hoog

et al. 1996

International Journal of Radiation Oncology*Biology*Physics

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Limitations of reduced-field irradiated volume and technique in conventional radiation therapy of prostate cancer:Implications for conformal 3-D treatment

et al. 2000

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In order to define technical limitations of conventional external beam irradiation for clinically localized prostate cancer, we evaluated the impact of several reduced‐field treatment factors, such as reduced‐field (RF) irradiated volume, RF technique, photon energy of treatment, and dose on survival endpoints and local control in a retrospective series. Several survival endpoints, such as disease‐specific survival, freedom from relapse survival, biochemical no‐evidence of disease (bNED) survival, and local control were associated with several treatment variables using univariate and multivariate analyses in 329 patients. Reduced‐field technique appeared to predict survival outcome, with patients treated by bilateral 120° arcs faring less well than those treated by full 360° rotational fields. The irradiated volume of the reduced‐field was also significantly associated with survival outcome, with patients treated with smaller volumes faring less well. Local failure rates also appeared increased, although not statistically, in patients treated with smaller RF sizes. In an attempt to explain these detected deficiencies, dose‐volume histograms for prostate coverage were created for a small sample of patients. The deficiencies related to small reduced‐field volume appeared to be largely attributable to poor dosimetric coverage of the prostate. These results underscore the limitations of conventional external beam treatment for prostate carcinoma when conventional techniques are employed, particularly if small reduced fields are used, and further supports the development of improved treatment techniques, such as conformal irradiation, as alternatives. Int. J. Cancer (Radiat. Oncol. Invest.) 90:265–274, 2000. © 2000 Wiley‐Liss, Inc.

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Three-dimensional conformal therapy (3D-CRT) for prostate cancer

Chuba¹,

Porter²,

Forman³

1996

Diagnosis and Treatment of Genitourinary Malignancies

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The retrograde urethrogram is more accurate than ct in identifying the caudal prostate margin for conformal treatment planning

Cited by 39 publications

References 0 publications

A quality control study of the accuracy of patient positioning in irradiation of pelvic fields

A quality control study of the accuracy of patient positioning in irradiation of pelvic fields

Limitations of reduced-field irradiated volume and technique in conventional radiation therapy of prostate cancer:Implications for conformal 3-D treatment

Three-dimensional conformal therapy (3D-CRT) for prostate cancer

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