CT Head With IV Contrast There is no relevant literature regarding the use of CT head with IV contrast in the evaluation of isolated AVS. 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 isolated AVS. CT Head Without IV Contrast Imaging evaluation in isolated AVS without features of central vertigo is unnecessary. Patients with features of central vertigo or high baseline risk for stroke may be candidates for neuroimaging. Head CT allows for rapid evaluation of the intracranial structures. In isolated AVS, the detection rate of acute infarct may be as high at 11% at a single-center study involving 221 patients; therefore, noncontrast head CT may be of benefit in select patients [28]. Brain MRI may be useful for follow up evaluation if initial head CT is negative. 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 isolated AVS. 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 isolated AVS. 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 isolated AVS. 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 isolated AVS. 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 isolated AVS. 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 isolated AVS.
Dizziness and Ataxia. CT Head With IV Contrast There is no relevant literature regarding the use of CT head with IV contrast in the evaluation of isolated AVS. 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 isolated AVS. CT Head Without IV Contrast Imaging evaluation in isolated AVS without features of central vertigo is unnecessary. Patients with features of central vertigo or high baseline risk for stroke may be candidates for neuroimaging. Head CT allows for rapid evaluation of the intracranial structures. In isolated AVS, the detection rate of acute infarct may be as high at 11% at a single-center study involving 221 patients; therefore, noncontrast head CT may be of benefit in select patients [28]. Brain MRI may be useful for follow up evaluation if initial head CT is negative. 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 isolated AVS. 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 isolated AVS. 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 isolated AVS. 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 isolated AVS. 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 isolated AVS. 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 isolated AVS.