Essays about: "Phase-contrast computed tomography"

Showing result 1 - 5 of 7 essays containing the words Phase-contrast computed tomography.

1. 1. Development of Advanced X-ray Micro-Tomography Helical Scan andTomographic Data Processing

   University essay from Högskolan i Gävle/Avdelningen för elektroteknik, matematik och naturvetenskap

   Author : Yoseph Abraham; [2023]
   Keywords : ;

   Abstract : Micro-computed tomography (Micro-CT) is an imaging technique that allows for high-resolution,three-dimensional (3D) internal visualization of small objects in a non-destructive manner. However,a significant limitation arises when attempting to image elongated samples at higher resolutions andmagnifications due to the inherently small field of view (FOV). READ MORE

3. 2. Phase-Contrast Imaging, Towards G2-less Grating Interferometry With Deep Silicon

   University essay from KTH/Fysik

   Author : Rickard Brunskog; [2022]
   Keywords : Phase-contrast imaging; phase-contrast; CT-scanning; Computed-tomography; 1 micrometer resolution x-ray; grating-less phase-contrast imaging; Faskontraströntgen; faskontrast; CT-skanning; 1 mikrometer upplösning x-ray; gitterlös faskontrast; datortomografi;

   Abstract : Conventional phase-contrast imaging entails stepping an analyser grating across the detector to resolve the interference pattern caused by the x-rays after passing through a series of gratings in a so-called Talbot-Lau interferometer. However, the analyser grating in the interferometer poses a challenge, not only due to the machinery and alignment required but also due to each exposure delivering a dose to the subject. READ MORE

4. 3. Image analysis on the structure of the Achilles tendon

   University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

   Author : Linnea Andersson; [2022]
   Keywords : biomechanics; Achilles tendon; image analysis; image processing; tendons; synchrotron; computed tomography; phase contrast; Technology and Engineering;

   Abstract : The Achilles tendon is the largest tendon of the human body which makes injuries of it very painful and incapacitating. A common factor of the pain are heterotopic ossifications, which are mineral deposits occurring inside the normal tendon tissue. Why and how heterotopic ossifications occur are somewhat unknown. READ MORE

5. 4. Rapid Preparation of Soft Tissue for X-ray Virtual Histology

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

   Author : Filip Lagerqvist; [2022]
   Keywords : Phase-contrast computed tomography; fixation; fixation time; image segmentation; tumor resection margin;

   Abstract : When removal of primary tumors is performed by surgery, the surgeon andthe patient would benefit from using intraoperative feedback to evaluate thetumor resection margin. If intraoperative feedback is not provided there isadditional risk of treatment of the tumor. READ MORE

6. 5. High resolution x-ray imaging by measuring the induced charge distribution

   University essay from KTH/Fysik

   Author : Zihui Jin; [2022]
   Keywords : Computed tomography; photon-counting detector; silicon; spatial resolution; Datortomografi; fotonräknande detektor; kisel; spatial upplösning;

   Abstract : Computed tomography (CT) is a medical imaging technique used to create cross-section images of human bodies based on x-rays. The emerging photon-counting CT detector shows several advantages compared with the traditional energy integrating detector. READ MORE