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A 51-year-old female patient post total thyroidectomy for PTC with elevated thyroglobulin measurement. an Axial non-enhanced CT scan of the neck at the level of the thyroid bed demonstrates a well-defined, rounded, homogenously dense soft tissue situated between the trachea and left internal jugular vein (white arrow). b Transverse ultrasound ...
A CT scan can be used for detecting both acute and chronic changes in the lung parenchyma, the tissue of the lungs. [41] It is particularly relevant here because normal two-dimensional X-rays do not show such defects.
Finally, the use of magnetic resonance imaging (MRI) allowed for even better depiction of the spine and soft tissue abnormalities in particular. Again, a novel acronym was proposed to classify patients without traumatic signs using radiographs, CT and MRI. The term spinal cord injury without neuroimaging abnormality (SCIWONA) was used.
In CT, X-rays must be blocked by some form of dense tissue to create an image, so the image quality when looking at soft tissues will be poor. In MRI, while any nucleus with a net nuclear spin can be used, the proton of the hydrogen atom remains the most widely used, especially in the clinical setting, because it is so ubiquitous and returns a ...
A CT scan image showing a ruptured abdominal aortic aneurysm. CT Scan of 11 cm Wilms' tumor of right kidney in 13-month-old patient. Computed tomography of the abdomen and pelvis is an application of computed tomography (CT) and is a sensitive method for diagnosis of abdominal diseases. It is used frequently to determine stage of cancer and to ...
Low-dose high-resolution (1.25 mm) chest CT. HRCT is performed using a conventional CT scanner. However, imaging parameters are chosen so as to maximize spatial resolution: [1] a narrow slice width is used (usually 1–2 mm), a high spatial resolution image reconstruction algorithm is used, field of view is minimized, so as to minimize the size of each pixel, and other scan factors (e.g. focal ...
Plain film radiography is not a suggested modality for investigating the spread of cancerous cells in the abdomen due to the poor spatial resolution amongst soft-tissue densities. Contrast resolution obtained through CT allows radiologists to investigate omental caking for morphology, intraperitoneal fluid, and regional lymphadenopathy assists ...
On computed tomography (CT) or radiograph, VHs can cause rarefaction with vertical striations (often referred to as corduroy pattern) or a coarse honeycomb appearance. A polka-dot appearance on CT scan represents a cross-section of reinforced trabeculae. [11] [13] CT best defines the bony architecture and is the best diagnostic imaging method. [14]
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