First clinical experience with a novel, mobile cone-beam CT system for treatment quality assurance in brachytherapy.
Adaptive brachytherapy
Gynecologic brachytherapy
Image-guidance
Mobile imaging
On-site computed tomography imaging
Journal
Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]
ISSN: 1439-099X
Titre abrégé: Strahlenther Onkol
Pays: Germany
ID NLM: 8603469
Informations de publication
Date de publication:
06 2022
06 2022
Historique:
received:
26
10
2021
accepted:
16
02
2022
pubmed:
13
3
2022
medline:
26
5
2022
entrez:
12
3
2022
Statut:
ppublish
Résumé
On-site cone-beam computed tomography (CBCT) has gained in importance in adaptive brachytherapy during recent years. Besides treatment planning, there is increased need particularly for image-guidance during interventional procedures and for image-guided treatment quality assurance (QA). For this purpose, an innovative CBCT device was rolled out at our hospital as the first site worldwide. We present the first clinical images and experiences. The novel CBCT system is constructed of a 121 cm diameter ring gantry, and features a 43.2 × 43.2 cm With the presented device, treatment QA was feasible for the majority of patients. The CBCT scans of breast patients showed sufficient contrast between implanted catheters and tissue. For gynecologic patients, a distinct visualization of applicators was achieved in general. However, reasonable differentiations of organic soft tissues were not feasible. The CBCT system allowed basic treatment QA measures for breast and gynecologic patients. For image-guidance during interventional brachytherapy procedures, the current image quality is not adequate. Substantial performance enhancements are required for intraoperative image-guidance.
Sections du résumé
BACKGROUND AND PURPOSE
On-site cone-beam computed tomography (CBCT) has gained in importance in adaptive brachytherapy during recent years. Besides treatment planning, there is increased need particularly for image-guidance during interventional procedures and for image-guided treatment quality assurance (QA). For this purpose, an innovative CBCT device was rolled out at our hospital as the first site worldwide. We present the first clinical images and experiences.
MATERIALS AND METHODS
The novel CBCT system is constructed of a 121 cm diameter ring gantry, and features a 43.2 × 43.2 cm
RESULTS
With the presented device, treatment QA was feasible for the majority of patients. The CBCT scans of breast patients showed sufficient contrast between implanted catheters and tissue. For gynecologic patients, a distinct visualization of applicators was achieved in general. However, reasonable differentiations of organic soft tissues were not feasible.
CONCLUSION
The CBCT system allowed basic treatment QA measures for breast and gynecologic patients. For image-guidance during interventional brachytherapy procedures, the current image quality is not adequate. Substantial performance enhancements are required for intraoperative image-guidance.
Identifiants
pubmed: 35278094
doi: 10.1007/s00066-022-01912-7
pii: 10.1007/s00066-022-01912-7
pmc: PMC9165284
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
573-581Informations de copyright
© 2022. The Author(s).
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