Essays about: "hjärntumör"

Found 4 essays containing the word hjärntumör.

  1. 1. Deep Learning with Importance Sampling for Brain Tumor MR Segmentation

    University essay from KTH/Optimeringslära och systemteori

    Author : Hanna Westermark; [2021]
    Keywords : Deep learning; importance sampling; segmentation; convolutional neural networks; MRI; brain tumour; Djupinlärning; importance sampling; segmentering; faltningsnätverk; MRI; hjärntumör;

    Abstract : Segmentation of magnetic resonance images is an important part of planning radiotherapy treat-ments for patients with brain tumours but due to the number of images contained within a scan and the level of detail required, manual segmentation is a time consuming task. Convolutional neural networks have been proposed as tools for automated segmentation and shown promising results. READ MORE

  2. 2. Raman spectroscopy in neurosurgery

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Saga Bergqvist; [2020]
    Keywords : Raman spectroscopy; brain tumor; diagnosis;

    Abstract : Brain tumors or brain cancer is a disease than affects people of all ages. The median age of a person living with a brain tumor is 60 years, it is however a disease that affects children and young adults in high grade. READ MORE

  3. 3. Natural sugar as an MRI contrast agent for brain cancer detection using chemical exchange saturation transfer (CEST) imaging at 3T

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Anina Seidemo; [2018]
    Keywords : Medicine and Health Sciences;

    Abstract : Hjärntumörer utgör cirka 2,5% av alla cancerdiagnoser i Sverige (2013) och femårsöverlevnaden är cirka 50%. Hjärntumörer diagnostiseras med bildtagningstekniker såsom datortomografi (CT), positronemissionstomografi (PET) och magnetkamera (MR). READ MORE

  4. 4. BNCT in vivo dosimetry A feasibility study using an HPGe detector for prompt gamma spectroscopy

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Carl Östlund; [2005]
    Keywords : Strålterapi; Medicine and Health Sciences;

    Abstract : Increased accuracy in patient dosimetry in BNCT is needed. This need for more accurate individual patient dose estimations initiated this project at the Swedish BNCT facility at Studsvik. One possible way to achieve this is to use an HPGe detector. READ MORE