Absolute and relative dose–surface and dose–volume histograms of the bladder: which one is the most representative for the actual treatment?
- Resource Type
- Authors
- Joos V. Lebesque; Josien de Bois; Stephanie T.H. Peeters; Mischa S. Hoogeman
- Source
- Physics in Medicine and Biology, 50(15), 3589-3597. IOP Publishing Ltd.
- Subject
- Male
Correlation coefficient
Urinary Bladder
Computed tomography
Models, Biological
Risk Assessment
Sensitivity and Specificity
Radiation Protection
Histogram
Humans
Medicine
Computer Simulation
Radiology, Nuclear Medicine and imaging
Patient group
Radiation Injuries
Radiometry
Clinical treatment
Urinary bladder
Radiotherapy
Radiological and Ultrasound Technology
medicine.diagnostic_test
business.industry
Radiotherapy Planning, Computer-Assisted
Prostatic Neoplasms
Reproducibility of Results
Dose-Response Relationship, Radiation
Radiotherapy Dosage
equipment and supplies
Bladder filling
body regions
medicine.anatomical_structure
nervous system
Organ Specificity
Body Burden
sense organs
business
Nuclear medicine
Relative Biological Effectiveness
Volume (compression)
- Language
- ISSN
- 1361-6560
0031-9155
The purpose of this study was to quantify to what extent relative and absolute bladder dose-volume and dose-surface histograms of the planning CT scan were representative for the actual treatment. We used data of 17 patients, who each received 11 repeat CT scans and a planning CT scan. The repeat CT scans were matched on the planning CT scan by the bony anatomy. Clinical treatment plans were used to evaluate the impact of bladder filling changes on the four histogram types. The impact was quantified by calculating for this patient group the correlation coefficient between the planning histogram and the treatment histogram. We found that the absolute dose-surface histogram was the most representative one for the actual treatment.