CT Head Without and With IV Contrast There is no relevant literature regarding the use of CT head without and with IV contrast in the evaluation of t-EVS. CT Head Without IV Contrast Imaging evaluation in BPPV with typical nystagmus on Dix-Hallpike testing is unnecessary. Head CT allows for the evaluation of the intracranial structures; however, soft tissue contrast is inferior to MRI. In a single-center retrospective study of patients with episodic vertigo triggered by specific head movements but negative or atypical Dix-Hallpike testing (CPPV), CT detected acute brain lesions in 6% of cases compared with 11% with MRI [6]. CT Temporal Bone With IV Contrast There is no relevant literature regarding the use of CT temporal bone with IV contrast in the evaluation of t-EVS. CT Temporal Bone Without and With IV Contrast There is no relevant literature regarding the use of CT temporal bone without and with IV contrast in the evaluation of t-EVS. CT Temporal Bone Without IV Contrast There is no relevant literature regarding the use of CT temporal bone without IV contrast in the evaluation of t- EVS. CTA Head and Neck With IV Contrast There is no relevant literature regarding the use of CTA head and neck with IV contrast in the evaluation of t-EVS. MRA Head and Neck With IV Contrast There is no relevant literature regarding the use of MRA head and neck with IV contrast in the evaluation of t-EVS. MRA Head and Neck Without and With IV Contrast There is no relevant literature regarding the use of MRA head and neck without and with IV contrast in the evaluation of t-EVS. MRA Head and Neck Without IV Contrast Imaging evaluation in BPPV with typical nystagmus on Dix-Hallpike testing is unnecessary. MRA allows for evaluation of the course and luminal caliber of the arteries. MRA can also detect luminal filling defects, which may include thrombus, embolus, atherosclerotic plaque, dissection flap, or vascular web.
Dizziness and Ataxia. CT Head Without and With IV Contrast There is no relevant literature regarding the use of CT head without and with IV contrast in the evaluation of t-EVS. CT Head Without IV Contrast Imaging evaluation in BPPV with typical nystagmus on Dix-Hallpike testing is unnecessary. Head CT allows for the evaluation of the intracranial structures; however, soft tissue contrast is inferior to MRI. In a single-center retrospective study of patients with episodic vertigo triggered by specific head movements but negative or atypical Dix-Hallpike testing (CPPV), CT detected acute brain lesions in 6% of cases compared with 11% with MRI [6]. CT Temporal Bone With IV Contrast There is no relevant literature regarding the use of CT temporal bone with IV contrast in the evaluation of t-EVS. CT Temporal Bone Without and With IV Contrast There is no relevant literature regarding the use of CT temporal bone without and with IV contrast in the evaluation of t-EVS. CT Temporal Bone Without IV Contrast There is no relevant literature regarding the use of CT temporal bone without IV contrast in the evaluation of t- EVS. CTA Head and Neck With IV Contrast There is no relevant literature regarding the use of CTA head and neck with IV contrast in the evaluation of t-EVS. MRA Head and Neck With IV Contrast There is no relevant literature regarding the use of MRA head and neck with IV contrast in the evaluation of t-EVS. MRA Head and Neck Without and With IV Contrast There is no relevant literature regarding the use of MRA head and neck without and with IV contrast in the evaluation of t-EVS. MRA Head and Neck Without IV Contrast Imaging evaluation in BPPV with typical nystagmus on Dix-Hallpike testing is unnecessary. MRA allows for evaluation of the course and luminal caliber of the arteries. MRA can also detect luminal filling defects, which may include thrombus, embolus, atherosclerotic plaque, dissection flap, or vascular web.