The addition of gadolinium-based IV contrast agents also improves the detection and characterization of masses as well as inflammatory, infectious, or demyelinating processes, which have been described in the setting of CPPV in a retrospective study of 500 patients [21]. MRI Head and Internal Auditory Canal Without IV Contrast There is no relevant literature regarding the use of MRI head and IAC without IV contrast in the evaluation of t- EVS. MRI Head With IV Contrast There is no relevant literature regarding the use of MRI head with IV contrast in the evaluation of t-EVS. MRI Head Without and With IV Contrast Imaging evaluation in BPPV with typical nystagmus on Dix-Hallpike testing is unnecessary. MRI allows detailed evaluation of the intracranial structures with improved soft tissue resolution when compared with CT. The addition of MRI of the brain following the IV administration of gadolinium-based contrast allows further characterization of any detected lesions and improves the detection and characterization of masses as well as inflammatory, infectious, or demyelinating processes, which have been described in the setting of CPPV [20]. Acute brain lesions have been reported in 6% of patients undergoing head CT and 11% of those undergoing MRI for CPPV [6]. MRI Head Without IV Contrast Imaging evaluation in BPPV with typical nystagmus on Dix-Hallpike testing is unnecessary. MRI allows detailed evaluation of the intracranial structures with improved soft tissue resolution when compared with CT. MRI of the head is not indicated for the initial diagnosis of typical BPPV. The presence of coexisting brain atrophy on MRI, however, is associated with a higher risk of prolonged dizziness following a diagnosis of BPPV and so may be of prognostic value in these patients in a retrospective study of 120 patients [24]. Variant 2: Adult. Acute persistent vertigo. Normal neurologic examination and HINTS examination is consistent with peripheral vertigo. Initial imaging.
Dizziness and Ataxia. The addition of gadolinium-based IV contrast agents also improves the detection and characterization of masses as well as inflammatory, infectious, or demyelinating processes, which have been described in the setting of CPPV in a retrospective study of 500 patients [21]. MRI Head and Internal Auditory Canal Without IV Contrast There is no relevant literature regarding the use of MRI head and IAC without IV contrast in the evaluation of t- EVS. MRI Head With IV Contrast There is no relevant literature regarding the use of MRI head with IV contrast in the evaluation of t-EVS. MRI Head Without and With IV Contrast Imaging evaluation in BPPV with typical nystagmus on Dix-Hallpike testing is unnecessary. MRI allows detailed evaluation of the intracranial structures with improved soft tissue resolution when compared with CT. The addition of MRI of the brain following the IV administration of gadolinium-based contrast allows further characterization of any detected lesions and improves the detection and characterization of masses as well as inflammatory, infectious, or demyelinating processes, which have been described in the setting of CPPV [20]. Acute brain lesions have been reported in 6% of patients undergoing head CT and 11% of those undergoing MRI for CPPV [6]. MRI Head Without IV Contrast Imaging evaluation in BPPV with typical nystagmus on Dix-Hallpike testing is unnecessary. MRI allows detailed evaluation of the intracranial structures with improved soft tissue resolution when compared with CT. MRI of the head is not indicated for the initial diagnosis of typical BPPV. The presence of coexisting brain atrophy on MRI, however, is associated with a higher risk of prolonged dizziness following a diagnosis of BPPV and so may be of prognostic value in these patients in a retrospective study of 120 patients [24]. Variant 2: Adult. Acute persistent vertigo. Normal neurologic examination and HINTS examination is consistent with peripheral vertigo. Initial imaging.