![]() But since MRI is not dependent on material density, but rather on spin properties of material at the subatomic particle level, they can behave quite differently within a magnetic field and produce quite different signal on various MR imaging sequences, allowing much better visual distinction. normal muscle and an adjacent sarcoma), they can be difficult to distinguish or demarcate from each other. On CT, if two soft tissue structures are similar in density (e.g. MRI, on the other hand, offers much better, more specific, and more distinctive soft tissue characterization than CT. In the temporal bone region, therefore, CT is useful for assessing the margin and patency of the external auditory canal (EAC) thickness of the tympanic membrane, as it is bordered on either side by air, and whether there may be myringosclerosis, perforation, or retraction margins, aeration, and opacities of the middle ear and bony and calcified structures such as the ossicles, mastoid septations, otic capsule, morphology and margins of the cochlea and semicircular canals, vestibular aqueduct, and facial nerve canal. CT allows excellent delineation of calcifications, cortical bone, air, and fat. The patient’s presenting symptoms and suspected diagnoses help guide the choice of modality.ĬT offers better spatial resolution compared to MRI. Each modality has its strengths and limitations. See for the full LOINC copyright and license.Imaging evaluation of the ear and temporal bone is primarily accomplished by computed tomography (CT) or magnetic resonance imaging (MRI). and the Logical Observation Identifiers Names and Codes (LOINC) Committee. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2023, Regenstrief Institute, Inc. Changed System from "Internal auditory canal" for conformance with the LOINC/RadLex unified model.Ĭopyright © 2023 Regenstrief Institute, Inc. Per Radlex/LOINC Committee we are changing the order of these components to better reflect the reality of the sequence in which they are performed (first without contrast, then with). The scale has been changed from "Nar" to "Doc" to fit with the CDA model. 72230-6ĭiagnostic imaging report - recommended C-CDA R1.1 sectionsĭiagnostic imaging report - recommended C-CDA R2.0 and R2.1 sections A LOINC term may represent a single associated observation or panel containing several associated observations. LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. This is a synonym for “spot” or “random” as applied to urine measurements.ĭoc = Document: A document that could be in many formats (XML, narrative, etc.) Pt = Point in time: To identify measures at a point in time. LOINC Home LP432695-7 Clinical LP7787-7 Radiology LP29684-5 Head LP7281-1 Internal auditory canal LP30063-9 Internal auditory canal | Computed tomography | Radiology LP404839-5 CT Internal auditory canal WO and W contrast IV 36282-2 LOINC CodeĬT Internal auditory canal WO and W contrast IV News - industry news & Find-A-Code updates.Marketplace - recommended products & services.Library - buy digital books from Find-A-Code.Bookstore - buy physical books & cheat sheets.Subjects - Audits, E&M, HIPAA, Practice Mgt, etc.Specialties - Cardiology, ENT, Family Practice, etc.Payers - Medicare, Medicaid, BC/BS, Aetna, etc.Facilities & Organizations - ACOs, Hospitals, etc. ![]()
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