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Multicatheter hybrid breast brachytherapy: A potential alternative for patients with inadequate skin distance
Journal article   Peer reviewed

Multicatheter hybrid breast brachytherapy: A potential alternative for patients with inadequate skin distance

Sushil Beriwal, Devin Coon, Hayeon Kim, Marsha Haley, Rakesh Patel and Rupak Das
Brachytherapy, v 7(4), pp 301-304
01 Oct 2008
DOI: https://doi.org/10.1016/j.brachy.2008.07.003
PMID: 18771962
Featured in Collection :   UN Sustainable Development Goals @ Drexel
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https://doi.org/10.1016/j.brachy.2008.07.003View
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Abstract

APBI ClearPath MammoSite
The purpose of this study was to determine whether the ClearPath (CP) multicatheter hybrid device was able to achieve acceptable dosimetry in patients in whom the proximity of the breast surgical cavity to the skin precluded treatment with intracavitary MammoSite (MS) brachytherapy. The study consisted of 11 patients who had the MS catheter placed and who were subsequently not treated due to inadequate skin distance. A phantom scan of the CP multicatheter hybrid device was superimposed on the MS CT scan and a dosimetric comparison was performed. The median MS balloon size, diameter, and minimum skin distance were 40 cc, 4.1 cm, and 5 mm, respectively. The D 90, V 100, V 150, and V 200 with MS vs. CP were 95.29% vs. 97.06%, 88.8% vs. 91.3%, 35.7% vs. 38.0%, and 9.4% vs. 9.6%, respectively. The median maximum skin dose was 5.5 Gy vs. 3.9 Gy ( p <.0001). The median dose homogeneity index (DHI) was 0.60 vs. 0.59 ( p = .09). The median maximum rib, heart, and lung dose were 2.17 Gy vs. 2.18 Gy, 2.17 Gy vs. 2.18 Gy, and 0.50 Gy vs. 0.56 Gy, respectively. The hybrid CP catheter reduced the skin dose significantly without compromising the planning target volume coverage, DHI, or dose to other critical organs. The use of this device has the potential to increase the applicability of accelerated partial breast brachytherapy (APBI) in patients with a surgical cavity close to skin compared with balloon brachytherapy.

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12 citations in Web of Science
13 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Oncology
Radiology, Nuclear Medicine & Medical Imaging
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