Sep 23, 2024 · The internal acoustic canal (IAC), also known as the internal auditory canal or meatus (IAM), is a bony canal within the petrous portion of the temporal bone that transmits nerves and vessels from within the posterior cranial fossa to …

The Connecticut General Assembly created the Investment Advisory Council (IAC) through Public Act 73-594 to assist the State Treasurer regarding investment policies (CGS Sec. 3-13b).

The internal auditory canal (IAC) is a channel in the petrous bone located between the porus acousticus (medial) and the fundus (lateral) (17). The facial nerve passes through the IAC’s anterosuperior compartment and into the temporal bone’s facial nerve canal.

CT and MR imaging are essential cross-sectional imaging modalities for assessment of temporal bone anatomy and pathology. The choice of CT versus MR depends on the structures and the disease processes that require assessment, delineation, and characterization.

Nov 16, 2022 · Video approach to imaging the internal auditory canal with a focus on anatomy and common diseases including schwannoma, meningioma, Bell's palsy, and others.

“CT” stands for computed tomography, a specific type of x-ray used to examine the sinuses or the internal auditory canal inside the ear. It involves creating detailed pictures of your sinuses and IAC so that your ENT doctor can diagnose several ENT conditions.

CT Mastoids/Temporal/IACs Cat Scan Reference Guide for Patients. Test of choice for evaluating the middle ear ossicles and the surrounding bone architecture. Excellent test for trauma. Indications include mastoiditis, hearing loss, cholesteatoma, pain. 3-D reconstructions are done as needed. Patient Preparation . Non Contrast: no preparation

CT Temporal Bones / CT IAC (Internal Auditory Canal)/ CT Mandible/CT Facial Bones/ CT Orbits – used to detect fractures, tumors, trauma, infections and other anomalies in the mastoids, middle and inner ear and the jaw bone/face. CT Sinuses – most commonly done to check for a deviated septum or sinusitis or polyps.

CT IAC Guideline . Indications: Hearing loss. Oral Contrast: None . IV Contrast: If indicated; Yes (See . MRG Contrast Media Administration Policy ) Positioning Supine, head first FOV Bilateral IACs – Patient Size (Head) Each side – 10cm Axial Reconstruction: Thickness/ Interval/ Algorithm ...

CT provides excellent delineation of the external auditory canal, ossicular chain, and the bony labyrinth of the inner ear structures. CT is helpful in identifying changes of otospongiosis (otosclerosis), ossicular erosion or fusion, round window occlusion, and dehiscence of the superior semicircular canal . The latter can produce conductive ...