Assessment of voluntary deep inspiration breath-hold with CINE imaging for breast radiotherapy

Autor:	Lani Attwood, Elizabeth Claridge-Mackonis, Reuben Patrick Estoesta, Susan Carroll, David Odgers, Melissa Pham, Darren Martin, Joanne Toohey, Diana Naehrig
Rok vydání:	2017
Předmět:	Adult medicine.medical_specialty Cine image Radiography medicine.medical_treatment Breast radiotherapy Radiation Dosage 030218 nuclear medicine & medical imaging Breath Holding 03 medical and health sciences 0302 clinical medicine Breast cancer Unilateral Breast Neoplasms Humans Medicine Radiology Nuclear Medicine and imaging Aged Retrospective Studies Deep inspiration breath-hold Reproducibility business.industry Reproducibility of Results Heart Middle Aged medicine.disease Radiation therapy Oncology Cine imaging 030220 oncology & carcinogenesis Female Dose Fractionation Radiation Radiology Tomography X-Ray Computed business Nuclear medicine
Zdroj:	Journal of Medical Imaging and Radiation Oncology. 61:689-694
ISSN:	1754-9477
DOI:	10.1111/1754-9485.12616
Popis:	Summary Deep Inspiration Breath-Hold (DIBH) techniques for breast cancer radiation therapy (RT) have reduced cardiac dose compared to Free Breathing (FB). Recently, a voluntary deep inspiration breath-hold (vDIBH) technique was established using in-room lasers and skin tattoos to monitor breath-hold. An in-house quality assessment of positional reproducibility during RT delivery with vDIBH in patients with left-sided breast cancer was evaluated. The electronic portal imaging device (EPID) was used in cinematographic (CINE) mode to capture a sequence of images during beam delivery. Weekly CINE images were retrospectively assessed for 20 left-sided breast cancer patients receiving RT in vDIBH, and compared with CINE images of 20 patients treated in FB. The intra-beam motion was assessed and the distance from the beam central axis (CA) to the internal chest wall (ICW) was measured on each CINE image. These were then compared to the planned distance on digitally reconstructed radiograph (DRR). The maximum intra-beam motion for any one patient measurement was 0.30 cm for vDIBH and 0.20 cm for FB. The mean difference between the distance from the CA to ICW on DRR and the equivalent distance on CINE imaging (as treated) was 0.28 cm (SD 0.17) for vDIBH patients and 0.25 cm (SD 0.14) for FB patients (P = 0.458). The measured values were comparable for patients undergoing RT in vDIBH, and for those in FB. This quality assessment showed that using in-room lasers and skin tattoos to independently monitor breath-hold in vDIBH as detected by ‘on-treatment’ CINE imaging is safe and effective.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72573e1ab14514cdcc9da16876d8b9e9 https://doi.org/10.1111/1754-9485.12616 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.