Image-guided intensity-modulated radiation therapy for gallbladder carcinoma

Clifton D. Fuller, Charles Thomas, Adrian Wong, Sean X. Cavanaugh, Bill J. Salter, Terence S. Herman, Martin Fuss

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Purpose: Clinical and technical parameter analysis of patients treated with ultrasound-based image-guided tomotherapeutic IMRT for gallbladder cancer. Methods and materials: Between 8/2001 and 5/2005, 10 patients with primary tumors of the gallbladder were treated by image-guided IMRT to median doses of 59 Gy. To analyze normal tissue radiation exposure reduction using this novel approach, a virtual plan comparison between actually delivered IMRT plans and re-computed plans with identical inverse planning parameters but more conventional PTV safety margins was conducted. Results: Average CTV was 379 cm3, with a mean initial PTV of 834 cm3. In 9/10 patients, a boost was delivered to a mean CTVboost of 171 cm3 and average PTVboost of 241 cm3. One patient reported RTOG grade 3 acute toxicity. All other patients exhibited Grade 2 or lower acute toxicity. Preliminary median overall survival was 16.7 months (range 3.2-34.9 months), with 5/10 patients alive at analysis. Virtual plan comparison revealed significant organ-at-risk sparing by the enabled PTV margin reduction. Conclusion: Ultrasound-based image-guided IMRT is a feasible mechanism of delivering conformal radiation doses to tumors of the gallbladder with acceptable toxicity. Early outcome data with this novel radiation planning and delivery technique are encouraging and comparable to previously reported literature.

Original languageEnglish (US)
Pages (from-to)65-72
Number of pages8
JournalRadiotherapy and Oncology
Volume81
Issue number1
DOIs
StatePublished - Oct 2006

Fingerprint

Gallbladder
Radiotherapy
Carcinoma
Planning Techniques
Radiation
Organs at Risk
Gallbladder Neoplasms
Neoplasms
Safety
Survival

Keywords

  • Gallbladder cancer
  • Image-guided radiotherapy
  • IMRT
  • Outcomes
  • Patient positioning
  • Ultrasound

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging
  • Urology

Cite this

Fuller, C. D., Thomas, C., Wong, A., Cavanaugh, S. X., Salter, B. J., Herman, T. S., & Fuss, M. (2006). Image-guided intensity-modulated radiation therapy for gallbladder carcinoma. Radiotherapy and Oncology, 81(1), 65-72. https://doi.org/10.1016/j.radonc.2006.08.013

Image-guided intensity-modulated radiation therapy for gallbladder carcinoma. / Fuller, Clifton D.; Thomas, Charles; Wong, Adrian; Cavanaugh, Sean X.; Salter, Bill J.; Herman, Terence S.; Fuss, Martin.

In: Radiotherapy and Oncology, Vol. 81, No. 1, 10.2006, p. 65-72.

Research output: Contribution to journalArticle

Fuller, CD, Thomas, C, Wong, A, Cavanaugh, SX, Salter, BJ, Herman, TS & Fuss, M 2006, 'Image-guided intensity-modulated radiation therapy for gallbladder carcinoma', Radiotherapy and Oncology, vol. 81, no. 1, pp. 65-72. https://doi.org/10.1016/j.radonc.2006.08.013
Fuller, Clifton D. ; Thomas, Charles ; Wong, Adrian ; Cavanaugh, Sean X. ; Salter, Bill J. ; Herman, Terence S. ; Fuss, Martin. / Image-guided intensity-modulated radiation therapy for gallbladder carcinoma. In: Radiotherapy and Oncology. 2006 ; Vol. 81, No. 1. pp. 65-72.
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