Planting the seeds of success: CT-guided gold seed fiducial marker placement to guide robotic radiosurgery

Aashish Patel, Bhavraj Khalsa, Bryce Lord, Kumar Sandrasegaran, Chandana Lall

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Summary Fiducial marker (FM)-guided stereotactic body radiation therapy (SBRT) allows for precise targeting and delivery of radiation to a tumor site. In this article, we briefly discuss SBRT, provide examples to describe CT-guided FM placement to guide SBRT, and discuss some of the associated risks and benefits. This article serves as a pictorial review for body imagers and interventional radiologists who perform CT-guided procedures and interpret diagnostic studies for oncology patients. CT-guided FMs were placed in patients who were appropriate candidates for SBRT. One week following placement, patients underwent diagnostic CT and/or MR examinations in order to include the FM data in the development of a treatment plan. From October 2007-November 2009, a total of 89 patients were implanted with FMs. Sites of implantation included lung, liver, bone, chest and abdominal wall, and peritoneum/retroperitoneum. Complications included pneumothorax and FM migration. Twenty-one patients (33%) with lung FM placement experienced at least a small pneumothorax and 6 patients (9%) required thoracostomy tubes. FM migration occurred in 5 patients (8%) with lung placement. SBRT provides a safer and more effective alternative to conventional radiotherapy, and CT-guided FM implantation of tumor sites increases the precision of SBRT. Technical improvements in FM placement can limit the complications associated with the procedure and further enable highly localized tumor therapy.

Original languageEnglish
Pages (from-to)207-211
Number of pages5
JournalJournal of Medical Imaging and Radiation Oncology
Volume57
Issue number2
DOIs
StatePublished - Apr 2013

Fingerprint

Fiducial Markers
Radiosurgery
Robotics
Gold
Seeds
Radiotherapy
Pneumothorax
Lung
Thoracostomy
Neoplasms
Peritoneum
Abdominal Wall
Thoracic Wall
Radiation
Bone and Bones

Keywords

  • extracranial radiosurgery
  • fiducial markers
  • interventional radiology
  • radiation oncology
  • stereotactic body radiation therapy

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Oncology

Cite this

Planting the seeds of success : CT-guided gold seed fiducial marker placement to guide robotic radiosurgery. / Patel, Aashish; Khalsa, Bhavraj; Lord, Bryce; Sandrasegaran, Kumar; Lall, Chandana.

In: Journal of Medical Imaging and Radiation Oncology, Vol. 57, No. 2, 04.2013, p. 207-211.

Research output: Contribution to journalArticle

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