Medical Dosimetry
Volume 32, Issue 2 , Pages 121-133 , Summer 2007

Trilogy Image-Guided Stereotactic Radiosurgery

  • Calvin Huntzinger, M.S.

      Affiliations

    • Varian Medical Systems, Palo Alto, CA
    • Corresponding Author InformationReprint requests to: Calvin Huntzinger, M.S., Varian Medical Systems, 3100 Hansen Way, MS-263, Palo Alto, CA 94304.
  • ,
  • William Friedman, M.D.

      Affiliations

    • Department of Neurosurgery, University of Florida, Gainesville, FL
  • ,
  • Frank Bova, Ph.D.

      Affiliations

    • Department of Neurosurgery, University of Florida, Gainesville, FL
  • ,
  • Timothy Fox, Ph.D.

      Affiliations

    • Department of Radiation Oncology, Emory University School of Medicine, Atlanta, GA
  • ,
  • Lionel Bouchet, Ph.D.

      Affiliations

    • Varian Medical Systems, Palo Alto, CA
  • ,
  • Lester Boeh, M.B.A.

      Affiliations

    • Varian Medical Systems, Palo Alto, CA

,Accepted 11 January 2007.

References 

  1. Papiez L. On the equivalence of rotational and concentric therapy. Phys. Med. Biol. 2000;45:399–409
  2. Wagner TH, Meeks SL, Bova FJ, et al. Isotropic beam bouquets for shaped beam linear accelerator radiosurgery. Phys. Med. Biol. 2001;46:2571–2586
  3. Wagner TH, Yi T, Meeks SL, et al. A geometrically based method for automated radiosurgery planning. Int. J. Radiat. Oncol. Biol. Phys. 2000;48:1599–1611
  4. Papiez L, Timmerman R, DesRosiers C, et al. Extracranial stereotactic radioablation: Physical principles. Acta Oncol. 2003;42:882–894
  5. Sailer SL, Rosenman JG, Symon JR, et al. The tetrad and hexad: Maximum beam separation as a starting point for noncoplanar 3D treatment planning: Prostate cancer as a test case. Int. J. Radiat. Oncol. Biol. Phys. 1994;30:439–446
  6. Webb S. The problem of isotropically orienting N converging vectors in space with application to radiotherapy planning. Phys. Med. Biol. 1995;40:945–954
  7. Murphy MJ. The importance of computed tomography slice thickness in radiographic patient positioning for radiosurgery. Med. Phys. 1999;26:171–175
  8. Otto K, Clark BG, Huntzinger C. Exploring the limits of spatial resolution in radiation dose delivery. Med. Phys. 2002;29:1823–1831
  9. Zhang G, Jiang Z, Shepard D, et al. Effect of beamlet step-size on IMRT plan quality. Med. Phys. 2005;32:3448–3454
  10. Chui CS, Chan MF, Yorke E, et al. Delivery of intensity-modulated radiation therapy with a conventional multileaf collimator: Comparison of dynamic and segmental methods. Med. Phys. 2001;28:2441–2449
  11. Otto K, Clark BG. Enhancement of IMRT delivery through MLC rotation. Phys. Med. Biol. 2002;47:3997–4017
  12. Tobler M, Leavitt DD, Watson G. Optimization of the primary collimator settings for fractionated IMRT stereotactic radiotherapy. Med. Dosim. 2004;29:72–79
  13. Leavitt DD, Watson G, Tobler M, et al. Intensity-modulated radiosurgery/radiotherapy using a micromultileaf collimator. Med. Dosim. 2001;26:143–150
  14. Leavitt DD. Beam shaping for SRT/SRS. Med. Dosim. 1998;23:229–236
  15. Archer PG, Balter JM, Ross DA, et al. The treatment planning of segmental, conformal stereotactic radiosurgery utilizing a standard multileaf collimator. Med. Dosim. 1999;24:13–19
  16. Mohan R, Wu Q, Wang X, et al. Intensity modulation optimization, lateral transport of radiation, and margins. Med. Phys. 1996;23:2011–2021
  17. Shaw E, Kline R, Gillin M, et al. Radiation Therapy Oncology Group: Radiosurgery quality assurance guidelines. Int. J. Radiat. Oncol. Biol. Phys. 1993;27:1231–1239
  18. Wagner TH, Bova FJ, Friedman WA, et al. A simple and reliable index for scoring rival stereotactic radiosurgery plans. Int. J. Radiat. Oncol. Biol. Phys. 2003;57:1141–1149
  19. Bova FJ, Buatti JM, Friedman WA. The University of Florida frameless high-precision stereotactic radiotherapy system. Int. J. Radiat. Oncol. Biol. Phys. 1997;38:875–882
  20. Meeks SL, Bova FJ, Wagner TH. Image localization for frameless stereotactic radiotherapy. Int. J. Radiat. Oncol. Biol. Phys. 2000;46:1291–1299
  21. Buatti JM, Bova FJ, Friedman WA. Preliminary experience with frameless stereotactic radiotherapy. Int. J. Radiat. Oncol. Biol. Phys. 1998;42:591–599
  22. Ryken TC, Meeks SL, Pennington EC. Initial experience with frameless stereotactic radiosurgery. Int. J. Radiat. Oncol. Biol. Phys. 2001;51:1152–1158
  23. Tomé WA, Meeks SL, Buatti JM. A high-precision system for conformal intracranial radiotherapy. Int. J. Radiat. Oncol. Biol. Phys. 2000;47:1137–1143
  24. Tomé WA, Meeks SL, McNutt TR. Optically guided intensity modulated radiotherapy. Radiother Oncol. 2001;61:33–44
  25. Kamath R, Ryken TC, Meeks SL, et al. Initial clinical experience with frameless radiosurgery for patients with intracranial metastases. Int. J. Radiat. Oncol. Biol. Phys. 2005;61:1467–1472
  26. Kubo HD, Wang L. Compatibility of Varian 2100C gated operations with enhanced dynamic wedge and IMRT dose delivery. Med. Phys. 2000;27:1732–1738
  27. Kubo HD, Len PM, Minohara S, et al. Breathing-synchronized radiotherapy program at the University of California Davis Cancer Center. Med. Phys. 2000;27:346–353
  28. Ramsey CR, Cordrey IL, Oliver AL. A comparison of beam characteristics for gated and nongated clinical x-ray beams. Med. Phys. 1999;26:2086–2091
  29. Ramsey CR, Scaperoth D, Arwood D, et al. Clinical efficacy of respiratory gated conformal radiation therapy. Med. Dosim. 1999;24:115–119
  30. Korreman SS, Pedersen AN, Nottrup TJ, et al. Breathing adapted radiotherapy for breast cancer: Comparison of free breathing gating with the breath-hold technique. Radiother. Oncol. 2005;76:311–318
  31. Yorke E, Rosenzweig KE, Wagman R, et al. Interfractional anatomic variation in patients treated with respiration-gated radiotherapy. J. Appl. Clin. Med. Phys. 2005;6:19–32Epub May 19
  32. Vini VR, Vedam SS, Keall PJ, et al. Patient training in respiratory-gated radiotherapy. Med. Dosim. 2003;28:7–11
  33. Berson AM, Emery R, Rodriguez L, et al. Clinical experience using respiratory gated radiation therapy: Comparison of free-breathing and breath-hold techniques. Int. J. Radiat. Oncol. Biol. Phys. 2004;60:419–426
  34. Ford EC, Mageras GS, Yorke E, et al. Respiration-correlated spiral CT: A method of measuring respiratory-induced anatomic motion for radiation treatment planning. Med. Phys. 2003;30:88–97
  35. Vedam SS, Keall PJ, Kini VR, et al. Acquiring a four-dimensional computed tomography dataset using an external respiratory signal. Phys. Med. Biol. 2003;48:45–62
  36. Herman MG, Pisansky TM, Kruse JJ, et al. Technical aspects of daily online positioning of the prostate for three-dimensional conformal radiotherapy using an electronic portal imaging device. Int. J. Radiat. Oncol. Biol. Phys. 2003;57:1131–1140
  37. Pasma KL, Kroonwijk M, Quint S, et al. Transit dosimetry with an electronic portal imaging device (EPID) for 115 prostate cancer patients. Int. J. Radiat. Oncol. Biol. Phys. 1999;45:1297–1303
  38. Van Esch A, Depuydt T, Huyskens DP. The use of an aSi-based EPID for routine absolute dosimetric pre-treatment verification of dynamic IMRT fields. Radiother. Oncol. 2004;71:223–234
  39. Laughlin JS, Mohan R, Kutcher GJ. Choice of optimum megavoltage for accelerators for photon beam treatment. Int. J. Radiat. Oncol. Biol. Phys. 1986;12:1551–1557
  40. Benedict SH, Cardinale RM, Wu Q, et al. Intensity-modulated stereotactic radiosurgery using dynamic micro-multileaf collimation. Int. J. Radiat. Oncol. Biol. Phys. 2001;50:751–758
  41. Bortfeld T, Oelfke U, Nill S. What is the optimum leaf width of a multileaf collimator?. Med. Phys. 2000;27:2494–2502
  42. Cosgrove VP, Jahn U, Pfaender M, et al. Commissioning of a micro multi-leaf collimator and planning system for steriotactic radiosurgery. Radiother. Oncol. 1999;50:325–336
  43. Hartmann GH, Fohlisch F. Dosimetric characterisation of a new miniature multileaf collimator. Phys. Med. Biol. 2002;47:N171–N7
  44. Kubo HD, Wilder RB, Pappas CTE. Impact of collimator leaf width on stereotactic radiosurgery and 3D conformal radiotherapy treatment plans. Int. J. Radiat. Oncol. Biol. Phys. 1999;44:937–945
  45. Meeks SL, Bova F, Kim S, et al. Dosimetric characteristics of a double-focused miniature multileaf collimator. Med. Phys. 1999;26:729–733
  46. Monk JE, Perks JR, Doughty D, et al. Comparison of a micro-multileaf collimator with a 5-mm leaf-width collimator for intracranial stereotactic radiotherapy. Int. J. Radiat. Oncol. Biol. Phys. 2003;57:1443–1449
  47. Xia P, Geis P, Xing L, et al. Physical characteristics of a miniature multileaf collimator. Med. Phys. 1999;26:65–70
  48. Dvorak P, Georg D, Bogner J, et al. Impact of IMRT and leaf width on stereotactic body radiotherapy of liver and lung lesions. Int. J. Radiat. Oncol. Biol. Phys. 2005;61:1572–1581
  49. Adams EJ, Cosgrove VP, Shepherd SF, et al. Comparison of a multi-leaf collimator with conformal blocks for the delivery of stereotactically guided conformal radiotherapy. Radiother. Oncol. 1999;51:205–209
  50. Shiu AS, Kooy HM, Ewton JR, et al. Comparison of miniature multileaf collimation (MMLC) with circular collimation for stereotactic treatment. Int. J. Radiat. Oncol. Biol. Phys. 1997;37:679–688
  51. Boyer AL, Ochran TG, Nyerick CE, et al. Clinical dosimetry for implementation of a multileaf collimator. Med. Phys. 1992;19:1255–1261
  52. Huntzinger CJ. Leaf-End Configuration For Multileaf Collimator. 1992;U.S. patent 5,166,531. November 24
  53. Butson MJ, Yu PK, Cheung T. Rounded end multi-leaf penumbral measurements with radiochromic film. Phys. Med. Biol. 2003;48:N247–N252
  54. Huq MS, Das IJ, Steinberg T, et al. A dosimetric comparison of various multileaf collimators. Phys. Med. Biol. 2002;47:N159–N170
  55. Galvin JM, Han K, Cohen R. A comparison of multileaf-collimator and alloy-block field shaping. Int. J. Radiat. Oncol. Biol. Phys. 1998;40:721–731
  56. Jin JY, Yin FF, Ryu S, et al. Dosimetric study using different leaf-width MLCs for treatment planning of dynamic conformal arcs and intensity-modulated radiosurgery. Med. Phys. 2005;32:405–411
  57. Jaffray DA, Battista JJ, Fenster A, et al. X-ray sources of medical linear accelerators: Focal and extra-focal radiation. Med. Phys. 1993;20:1417–1427
  58. Benedict SH, Lin PS, Zwicker RD, et al. The biological effectiveness of intermittent irradiation as a function of overall treatment time: Development of correction factors for linac-based stereotactic radiotherapy. Int. J. Radiat. Oncol. Biol. Phys. 1997;37:765–769
  59. Zheng XK, Chen LH, Yan X, et al. Impact of prolonged fraction dose-delivery time modeling intensity-modulated radiation therapy on hepatocellular carcinoma cell killing. World J. Gastroenterol. 2005;11:1452–1456
  60. Wang JZ, Li XA, D’Souza WD, et al. Impact of prolonged fraction delivery times on tumor control: A note of caution for intensity-modulated radiation therapy (IMRT). Int. J. Radiat. Oncol. Biol. Phys. 2003;57:543–552
  61. Chmura, S.J.; Roeske, J.C. Biologic impact of IMRT treatment delivery techniques on tumor cell killing in vivo. Int. J. Radiat. Oncol. Biol. Phys. In press.

PII: S0958-3947(07)00010-6

doi: 10.1016/j.meddos.2007.01.009

Medical Dosimetry
Volume 32, Issue 2 , Pages 121-133 , Summer 2007