Intensity-Modulated Radiotherapy Using Implanted Fiducial Markers With Daily Portal Imaging: Assessment of Prostate Organ Motion

Chen, Jergin; Lee, R. Jeffrey; Handrahan, Diana; Sause, William T.

doi:10.1016/j.ijrobp.2007.02.024

Cited by 73 publications

(50 citation statements)

References 29 publications

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“…40 Many authors have reported studies based on the use of three or four implanted gold markers. 6,7,9,12,14,41 Most studies employ three FMs placed in a 3D triangular arrangement to facilitate assessment in the three cardinal directions (Figure 2). …”

Section: Number and Types Of Fiducial Markersmentioning

confidence: 99%

Fiducial marker guided prostate radiotherapy: a review

O’Neill¹,

Jain²,

Hounsell³

et al. 2016

The British Journal of Radiology

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Image-guided radiotherapy (IGRT) is an essential tool in the accurate delivery of modern radiotherapy techniques. Prostate radiotherapy positioned using skin marks or bony anatomy may be adequate for delivering a relatively homogeneous whole-pelvic radiotherapy dose, but these surrogates are not reliable when using reduced margins, dose escalation or hypofractionated stereotactic radiotherapy. Fiducial markers (FMs) for prostate IGRT have been in use since the 1990s. They require surgical implantation and provide a surrogate for the position of the prostate gland. A variety of FMs are available and they can be used in a number of ways. This review aimed to establish the evidence for using prostate FMs in terms of feasibility, implantation procedures, types of FMs used, FM migration, imaging modalities used and the clinical impact of FMs. A search strategy was defined and a literature search was carried out in Medline. Inclusion and exclusion criteria were applied, which resulted in 50 articles being included in this review. The evidence demonstrates that FMs provide a more accurate surrogate for the position of the prostate than either external skin marks or bony anatomy. A combination of FM alignment and soft-tissue analysis is currently the most effective and widely available approach to ensuring accuracy in prostate IGRT. FM implantation is safe and well tolerated. FM migration is possible but minimal. Standardization of all techniques and procedures in relation to the use of prostate FMs is required. Finally, a clinical trial investigating a non-surgical alternative to prostate FMs is introduced.

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Section: Number and Types Of Fiducial Markersmentioning

confidence: 99%

Fiducial marker guided prostate radiotherapy: a review

O’Neill¹,

Jain²,

Hounsell³

et al. 2016

The British Journal of Radiology

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“…1,2 A number of correctional strategies including implanted fiducials [3][4][5] and on-line three-dimensional (3D) computed tomography (CT) imaging [6][7][8][9] have been developed and clinically implemented. Although both methods provide daily image guidance, the latter is advantageous in that it allows for the evaluation of daily delivered doses.…”

mentioning

confidence: 99%

Dosimetric implications of two registration based patient positioning methods in prostate image guided radiation therapy (IGRT)

Rivest¹,

Riauka²,

Murtha³

et al. 2009

Radiology and Oncology

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“…Image-guided respiratory-gated radiation therapy has been a major advancement in minimizing inter-and intra-fractional target variations. To minimize and correct for setup uncertainties and inter-fractional motion of extracranial tumors, various immobilization and localization techniques have been clinically implemented, including transabdominal ultrasonography (Lattanzi et al 1999;Chandra et al 2003;Langen et al 2003), megavoltage imaging (Schiffner et al 2007;Serago et al 2006), kilovoltage imaging (Jaffray et al 1999;Kupelian et al 2008), use of an in-room computed tomography (CT)-linear accelerator system (Court et al 2003;Wong et al 2005), cone-beam CT (Jaffray et al 1999;Kupelian et al 2008), and placement of internal fiducials (Kupelian et al 2008;Chen et al 2007;Chung et al 2004). Pancreatic tumor targets usually exhibit inter-fractional motion relative to the bony anatomy because of daily variation in stomach and duodenal filling and respiratory patterns.…”

Section: Discussionmentioning

confidence: 99%