Essays about: "thyroid volume"

Showing result 1 - 5 of 6 essays containing the words thyroid volume.

  1. 1. A Phantom Based Comparison of Image Segmentation Algorithms for Adaptive Functional Volume Determination of the Thyroid Gland using SPECT

    University essay from Stockholms universitet/Fysikum

    Author : Henrik Berg; [2021]
    Keywords : Hyperthyroidism; Nuclear Medicine; SPECT; Functional Volume; Phantom Study; Adaptive Image Segmentation; Thresholding; Region Growing;

    Abstract : Background One of the most used treatments for hyperthyroidism, is therapy with radioactive iodine (131I), which is accumulated in the thyroid gland. To determine the activity of 131I to be administered for a certain absorbed dose, the volume of the gland is of great importance but the historically used methods for estimating the functional volume of the gland are based on large approximations. READ MORE

  3. 2. Quantification of I-131 Activity from Gamma Camera Images of Thyroid Cancer Patients

    University essay from Lunds universitet/Sjukhusfysikerutbildningen

    Author : Frida Westerbergh; [2019]
    Keywords : Physics and Astronomy;

    Abstract : BACKGROUND: Radioiodine (131I) has been used in thyroid cancer treatments for many years, and has demonstrated good results with regards to disease management. Radioiodine therapy is however partially empirical, as not very much is known concerning radiation dosimetry. READ MORE

  4. 3. Thyroid carcinomas in dogs – a literature review and retrospective study on the outcome of treatment for dogs treated at the Swedish University Animal Hospital (UDS), Uppsala 2008-2018

    University essay from SLU/Dept. of Clinical Sciences

    Author : Lisa Ekström; [2019]
    Keywords : thyroid carcinoma; dog; canine; ectopic thyroid tissue; metastasis;

    Abstract : Thyroid carcinomas is not the most common canine neoplasm, but since it is more common than the benign thyroid adenoma it is still an important disease to recognize. Most commonly it affects older dogs, with a mean age of about 10 years. READ MORE

  5. 4. Volume calculation of the thyroid gland from SPECT images based on Monte Carlo simulations

    University essay from Umeå universitet/Radiofysik; Umeå universitet/Institutionen för fysik

    Author : Niklas Palmqvist; [2018]
    Keywords : nuclear medicine xeleris thyroid hyperthyroidism thyrotoxicosis monte carlo technetium iodine;

    Abstract : In this study the volume determination which is a part of the doseplanning for patients with thyrotoxicosis was investigated. The aim was to find an accurate method to determine the active volume with single photon emission tomography (SPECT) which in several studies have shown better results than with the currently used method planar scintigraphy (PS). READ MORE

  6. 5. Determination of thyroid volume by ultrasound

    University essay from

    Author : Thu Nguyen Thi; [2016]
    Keywords : thyroid volume; ultrasound; transducer; radiographer;

    Abstract : Background: Ultrasound is safe and painless, produces pictures of the inside of the body using sound waves (not use ionizing radiation), thus there is no radiation exposure to the patient. The thyroid gland is among the most commonly imaged glands using ultrasound due to the limitation of clinical examination. READ MORE