Publications by authors named "A Beaudre"
Article Synopsis
- The study evaluates how various factors affect the quality of pseudo computed tomography (pCT) generated from magnetic resonance imaging (MRI) using a 3D convolutional neural network (CNN).
- It includes analysis of 402 brain tumor cases, examining different MRI sequences and standardization approaches, while also comparing two specific neural network architectures (HighResNet and 3D UNet).
- Results show that larger training datasets improve pCT quality, with the best pCTs produced from >200 samples, and reveal that specific standardization methods (like white stripe) yield lower errors compared to others.
Pediatric posterior fossa tumor (PFT) survivors who have been treated with cranial radiation therapy often suffer from cognitive impairments that might relate to IQ decline. Radiotherapy (RT) distinctly affects brain regions involved in different cognitive functions. However, the relative contribution of regional irradiation to the different cognitive impairments still remains unclear.
View Article and Find Full Text PDFReprint of "Chordoma in children: Case-report and review of literature".
Rep Pract Oncol Radiother
June 2016
We report an exceptional case of a very late local failure in a 9-year-old boy presenting with a chordoma of the cranio-cervical junction. The child was initially treated with a combination of surgical resection followed by high dose photon-proton radiation therapy. This aggressive therapy allowed a 9-year remission with minimal side-effects.
View Article and Find Full Text PDFWe report an exceptional case of a very late local failure in a 9-year-old boy presenting with a chordoma of the cranio-cervical junction. The child was initially treated with a combination of surgical resection followed by high dose photon-proton radiation therapy. This aggressive therapy allowed a 9-year remission with minimal side-effects.
View Article and Find Full Text PDFBackground And Purpose: The dose effect-effect relationship for cardiac diseases following radiotherapy suffers from uncertainties. Three dimensional coronary artery (CA) dose calculation after mediastinal Hodgkin lymphoma radiotherapy was performed, using the patient's coronary CT angiography (CCTA), and the relationship between the coronary arteries' radiation doses and the risk of stenosis was estimated.
Materials And Methods: Radiotherapy simulation CT scans and CCTAs of patients treated for a mediastinal Hodgkin lymphoma were used to merge thoracic and detailed cardiovascular anatomies.