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CT Stone Protocol. A computerized tomography (CT) scan combines a series of X-ray images taken from different angles around your body and uses computer processing to create image slices of the bones, blood vessels and soft tissue inside your body.
Kidney stone disease (nephrolithiasis) is a common problem in primary care practice. Patients may present with the classic symptoms of renal colic and hematuria. Others may be asymptomatic or have atypical symptoms such as vague abdominal pain, acute abdominal or flank pain, nausea, urinary urgency or frequency, difficulty urinating, penile ...
Computed tomography (CT) scans are the gold-standard imaging technique for diagnosing kidney stones. The risks associated with a single CT scan are minimal, but CT scans do expose your...
Renal stones can be diagnosed using a special non-contrast scan known as a flank pain CT. here are two more examples to help practice diagnosing renal stones. Case 1. Scroll through these PACS viewer images. Start by choosing to view the axial and coronal images side-by-side so you can find your landmarks.
A CT urogram is used to examine the kidneys, ureters and bladder. It lets your doctor see the size and shape of these structures to determine if they're working properly and to look for any signs of disease that may affect your urinary system.
4. Clinical Manifestations of Stone Disease. Asymptomatic and found on imaging for other reasons. Patients present after passing small stones or gravel. Symptoms develop when stone passes into the ureter. Pain intensity varies barely noticeable ache to severe back pain. Pain waxes and wanes, develops in waves as the stone moves.
With the introduction of iterative reconstruction (IR) technology, stone protocol CT scans can be performed at lower mA and lower kVp, permitting substantial radiation dose reduction.
To compare organ specific radiation dose and image quality in kidney stone patients scanned with standard CT reconstructed with filtered back projection (FBP-CT) to those scanned with low dose CT reconstructed with iterative techniques (IR-CT).
Key Points. Noncontrast CT is the most accurate imaging modality for kidney stones owing to high sensitivity, specificity, accurate stone sizing, and the ability to evaluate non-stone-related...
The renal mass CT protocol is a multiphasic contrast-enhanced examination for the assessment of renal masses. It is most often comprised of a non-contrast, nephrogenic phase and excretory phase. However, this article will cover the optional, corticomedullary phase too. NB: This article is intended to outline some general principles of protocol ...