Essays about: "x-ray ct"

Showing result 21 - 25 of 60 essays containing the words x-ray ct.

  1. 21. Classification of COVID-19 Using Synthetic Minority Over-Sampling and Transfer Learning

    University essay from Uppsala universitet/Institutionen för informationsteknologi

    Author : Christian Ormos; [2020]
    Keywords : transfer learning; AI; machine learning; image recognition; image augmentation; covid-19; VGG; MobileNet; InceptionV3; SMOTE; k-nn;

    Abstract : The 2019 novel coronavirus has been proven to present several unique features on chest X-rays and CT-scans that distinguish it from imaging of other pulmonary diseases such as bacterial pneumonia and viral pneumonia unrelated to COVID-19. However, the key characteristics of a COVID-19 infection have been proven challenging to detect with the human eye. READ MORE

  3. 22. Influence of cropping and fertilization on soil pore characteristics in a long-term field study

    University essay from SLU/Dept. of Soil and Environment

    Author : David Nimblad Svensson; [2020]
    Keywords : X-ray CT; soil structure; biopores; connectivity;

    Abstract : Soil porosity, pore size distribution and pore characteristics such as connectivity are important for a range of soil processes including ease of root growth and air and water transport. The pore structure is therefore an important part of soil fertility. READ MORE

  4. 23. Differentiating between packaging material and geometry using the Syntouch Biotac

    University essay from KTH/Hållfasthetslära

    Author : Henry Eriksson; [2019]
    Keywords : Syntouch Biotac; BillerudKorsnäs; sustainable packaging; packaging material; packaging geometry; CT Scan; grip stiffness; Syntouch Biotac; BillerudKorsnäs; hållbara förpackningar; förpackningsmaterial; förpackningsgeometri; CT scan; greppstyvhet;

    Abstract : Grip stiffness is an important property of carton board packaging. The structure of the packaging needs to withstand the handling of one or many consumers. A carton board packaging that feels stiff when handled conveys a sense of luxury to the consumer, one example of this is the packages containing new flagship smart phones. READ MORE

  5. 24. 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

  6. 25. Dual Energy CT as a Foundation for Proton Therapy Treatmen Planning - A pilot study

    University essay from Umeå universitet/Institutionen för fysik

    Author : Torbjörn Näsmark; [2019]
    Keywords : Dual Energy CT; DECT; Computed Tomography; CT; Proton Therapy; Skandion;

    Abstract : The treatment plan for radiation therapy with protons is based on images from a computed tomography (CT) scanner. This is problematic since the photons in the x-ray beam from the CT scanner and the protons are affected differently by the tissue in the patient, which introduce an uncertainty in the track length of the protons. READ MORE