Essays about: "Organs-at-risk"

Showing result 11 - 15 of 36 essays containing the word Organs-at-risk.

1. 11. Feasibility of adaptive SBRT of prostate cancer: Investigating uncertainties in AI-driven and CBCT-guided online adaptive radiotherapy

   University essay from Lunds universitet/Sjukhusfysikerutbildningen

   Author : Sevgi Emin; [2020]
   Keywords : Medicine and Health Sciences;

   Abstract : Purpose: Recent developments in external radiotherapy and its utilization with artificial in- telligence (AI) enables advanced treatment plans for a range of different disease sites. By adapting to the anatomy of the day, target coverage can be ensured while sparing more healthy tissue. READ MORE

3. 12. Multi-site Organ Detection in CT Images using Deep Learning

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Gustaf Jacobzon; [2020]
   Keywords : Organ Detection; Organs-at-risk; 3D Object Detection; Segmentation; Deep Learning; Machine Learning; Weakly-supervised Learning; YOLOv3; 3D U-Net;

   Abstract : When optimizing a controlled dose in radiotherapy, high resolution spatial information about healthy organs in close proximity to the malignant cells are necessary in order to mitigate dispersion into these organs-at-risk. This information can be provided by deep volumetric segmentation networks, such as 3D U-Net. READ MORE

4. 13. The Potential of Intra-fraction Monitoring of Patient Anatomy Using a Parameterized Motion Model

   University essay from Umeå universitet/Institutionen för fysik

   Author : Maya Staneva; [2019]
   Keywords : ;

   Abstract : Radiotherapy aims to strike a tumour with high accuracy, but anatomic changes and internal organ motion introduce uncertainties and therefore large margins are conventionally used to compensate for this. The MR-Linac will enable target tracking prior to and during treatment which will make daily adjustments of a treatment plan possible. READ MORE

5. 14. Target Volume Delineation In Hypoxia Dose Painting

   University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

   Author : Madita Edeling; [2019]
   Keywords : Tumour Hypoxia; Radiation Therapy;

   Abstract : Purpose: Tumour hypoxia is the result of uncontrolled growth of the tumour and its vasculature and is often found in solid tumours. It has been known for some time that tumour hypoxia is associated with increased radio resistance and poorer treatment outcomes. READ MORE

6. 15. Needle Navigation for Image Guided Brachytherapy of Gynecologic Cancer

   University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

   Author : Alireza Mehrtash; [2019]
   Keywords : Image Guided Surgery; Surgical Navigation System; Needle Navigation system; Brachytherapy; MRI; 3D Slicer;

   Abstract : In the past twenty years, the combination of the advances in medical imaging technologies and therapeutic methods had a great impact in developing minimally invasive interventional procedures. Although the use of medical imaging for the surgery and therapy guidance dates back to the early days of x-ray discovery, there is an increasing evidence in using the new imaging modalities such as computed tomography (CT), magnetic reso- nance imaging (MRI) and ultrasound in the operating rooms. READ MORE