{"id":"69a22bf8efd4f1d917503e8e","name":"MRI Internal Auditory Canal (IAC) with and without Contrast","slug":"mri-internal-auditory-canal-iac-with-and-without-contrast","description":"Structured template for MRI of the internal auditory canals with precontrast and postcontrast imaging, including whole brain evaluation","category":{"modality":"MRI","system":"Head & Neck"},"tags":["iac","internal auditory canal","contrast-enhanced","cerebellopontine angle","cpa","gadolinium","hearing loss","acoustic neuroma screening"],"sections":{"title":{"defaultText":"MRI of the Internal Auditory Canals Without and With Intravenous Contrast","aiInstructions":"Use the examination title provided in the report. This is typically 'MRI of the IAC without and with intravenous contrast' or similar variation."},"clinicalHistory":{"defaultText":"[Patient-specific — populated at report time]","aiInstructions":"Ask the user for: patient age, sex, presenting complaint, relevant clinical history, and reason for the exam. This section contextualizes the entire report. Always include it."},"comparison":{"defaultText":"No prior studies available for comparison.","aiInstructions":"Extract comparison information if provided. If the report states 'No prior studies' or is blank, use the default text. If prior studies are referenced, describe the comparison findings."},"technique":{"defaultText":"Multiplanar MRI of the internal auditory canals was performed. Precontrast sequences included high-resolution axial and coronal T1-weighted images and axial and coronal 3-D Drive T2-weighted images. Following intravenous gadolinium administration, matching high-resolution axial and coronal T1-weighted images were obtained. Additional sequences included whole brain axial T2-weighted, sagittal T1-weighted, diffusion-weighted imaging, and postcontrast axial T1-weighted sequences.","aiInstructions":"Extract the technique section from the report. Include all pulse sequences, planes, and contrast administration details. Maintain technical accuracy while ensuring clarity for clinical readers."},"findings":{"defaultText":"Overview of findings will be detailed in the anatomical sections below.","aiInstructions":"Provide a brief overview statement if present in the report. Then populate each anatomical field with specific findings.","fields":[{"name":"Cerebellopontine Angle Cisterns","defaultText":"No evidence of mass or abnormal enhancement within the cerebellopontine angle cisterns bilaterally.","aiInstructions":"Document any masses, abnormal enhancement, or lesions in the CPA cisterns. If normal, use default text. Specify laterality (unilateral vs bilateral) if abnormality is present."},{"name":"Internal Auditory Canals","defaultText":"No evidence of mass or abnormal enhancement within the internal auditory canals bilaterally.","aiInstructions":"Document the status of the IACs including presence or absence of masses, abnormal enhancement, or other pathology. Specify if findings are unilateral or bilateral."},{"name":"Middle Ear Structures","defaultText":"No abnormal enhancement of the middle ear structures bilaterally. The middle ear cavities appear unopacified.","aiInstructions":"Document enhancement patterns, fluid levels, opacification, or other abnormalities in the middle ear spaces. Note mastoid air cell status."},{"name":"Inner Ear Structures","defaultText":"No abnormal enhancement of the inner ear structures bilaterally.","aiInstructions":"Document any abnormal enhancement, signal abnormalities, or structural changes in the cochlea, vestibule, or semicircular canals."},{"name":"Mastoid Air Cells","defaultText":"The mastoid air cells appear clear bilaterally.","aiInstructions":"Document aeration status, opacification, fluid levels, or other abnormalities. Note if cells are well-aerated or show pathology."},{"name":"Brain Parenchyma","defaultText":"There are no abnormal areas of enhancement throughout the brain. No restricted diffusion to suggest acute ischemia. No abnormal areas of susceptibility effect. No intracranial hemorrhage identified.","aiInstructions":"Document any abnormal parenchymal enhancement, restricted diffusion, susceptibility effects, or hemorrhage. Include assessment of acute ischemia if diffusion sequences are present."},{"name":"Ventricles and Sulci","defaultText":"The ventricles and sulci are age-appropriate. No hydrocephalus, midline shift, or herniation pattern identified.","aiInstructions":"Document ventricular size, sulcal prominence, and any evidence of mass effect, midline shift, or herniation. Specify if findings are age-appropriate."},{"name":"Brainstem and Posterior Fossa","defaultText":"The brainstem, posterior fossa, and cervicomedullary junction are normal.","aiInstructions":"Document any abnormalities of the brainstem, fourth ventricle, cerebellar hemispheres, or cervicomedullary junction."},{"name":"Sellar Region","defaultText":"The sella turcica and pituitary gland are unremarkable.","aiInstructions":"Document pituitary gland size, signal intensity, and any masses or abnormal enhancement. Note sellar dimensions if abnormal."},{"name":"Pineal Region","defaultText":"The pineal recess region is unremarkable.","aiInstructions":"Document pineal gland signal and size. Note any masses or abnormal enhancement in the pineal region."},{"name":"Cerebral Vasculature","defaultText":"The vascular flow voids at the base of the brain are maintained.","aiInstructions":"Document patency of major intracranial vessels including carotid arteries, vertebral arteries, and circle of Willis. Note any flow abnormalities or signal voids."},{"name":"Calvarium and Skull Base","defaultText":"No suspicious expansile or destructive calvarial lesions identified.","aiInstructions":"Document any lytic, sclerotic, or mixed lesions of the skull. Note any destructive or expansile processes."},{"name":"Paranasal Sinuses","defaultText":"The visualized paranasal sinuses are clear.","aiInstructions":"Document aeration status of maxillary, ethmoid, and sphenoid sinuses. Note any opacification, air-fluid levels, or mucosal thickening."}]},"impression":{"defaultText":"No evidence of mass or abnormal enhancement within the cerebellopontine angles or internal auditory canals bilaterally.","aiInstructions":"Synthesize key findings into a concise clinical impression. Include primary findings related to the IAC examination and any significant incidental findings. Use standard radiological reporting language. State whether findings are normal or describe any pathology identified."}},"aiUsageInstructions":{"summary":"Use this template to generate a complete MRI Internal Auditory Canal (IAC) with and without Contrast radiology report.","steps":["1. Collect patient clinical history from the user (age, sex, clinical indication).","2. Confirm whether prior studies are available for comparison.","3. For the Technique section, use defaultText or adapt based on actual acquisition parameters.","4. For each field in sections.findings.fields: ask the user for the finding or infer from clinical context. Use defaultText if the structure is normal.","5. Generate the Impression by summarizing the most significant findings from step 4.","6. Use the aiInstructions for each section to guide the depth and format of the content.","7. Maintain formal radiology report language throughout. Passive voice preferred.","8. If any finding is abnormal, quantify it with measurements and describe its imaging characteristics."],"language":"Formal radiology report language. Passive voice preferred. Avoid first-person pronouns.","format":"Numbered impression list. Prose findings paragraphs or structured field-by-field format both acceptable.","units":"Report measurements in centimeters (cm) for masses, millimeters (mm) for small structures."},"meta":{"canonicalUrl":"https://radiluxreports.com/templates/mri-internal-auditory-canal-iac-with-and-without-contrast","claudeApiUrl":"https://radiluxreports.com/templates/api/claude/mri-internal-auditory-canal-iac-with-and-without-contrast","useInDashboardUrl":"https://radiluxreports.com/?templateId=69a22bf8efd4f1d917503e8e","apiUrl":"https://radiluxreports.com/templates/api/mri-internal-auditory-canal-iac-with-and-without-contrast","updatedAt":"2026-03-01T00:12:11.730Z","license":"Free for clinical and educational use. Attribution appreciated."}}