Richard Farb, MD, FRCPC
Site Director, Sinai Health
Dr. Farb is an interventional and diagnostic neuroradiologist specializing in the treatment of patients with brain vascular disorders, especially brain aneurysms, carotid artery disease and acute stroke. His research interests include stroke imaging and neurovascular MR angiographic techniques.
He is an Associate Professor with the Department of Medical Imaging at UofT, and a Clinician Investigator with the Krembil Research Institute, UHN.
- Spontaneous intracranial hypotension due to CSF-venous fistula: Evaluation of renal accumulation of contrast following decubitus myelography and maintained decubitus CT to improve fistula localization
CONCLUSION: The strategy of sequential LDDSM-LDCT coupled with evaluation of renal accumulation of contrast agent appears to improve the rate of CVF […]
- The presence of pachymeningeal hyperintensity on non-contrast flair imaging in patients with spontaneous intracranial hypotension
CONCLUSION: Where present, diffuse pachymeningeal hyperintensity can be accurately identified on a non-contrast FLAIR sequence in patients with […]
- Minimally invasive surgery for spinal cerebrospinal fluid-venous fistula ligation: patient series
BACKGROUND: Cerebrospinal fluid-venous fistulas (CVFs) may cause cerebrospinal fluid leaks resulting in spontaneous intracranial hypotension (SIH). […]
- Spontaneous intracranial hypotension: searching for the CSF leak
Spontaneous intracranial hypotension is caused by loss of CSF at the level of the spine. The most frequent symptom of this disorder is orthostatic […]
- Assessment of Discrepancies Between Follow-up Infarct Volume and 90-Day Outcomes Among Patients With Ischemic Stroke Who Received Endovascular Therapy
CONCLUSIONS AND RELEVANCE: In this study, discrepancies between functional outcome and post-EVT infarct volume were associated with differences in […]
- Spinal Longitudinal Epidural Collections in Intracranial Hypotension
No abstract
- Radial vs. Femoral Artery Access for Procedural Success in Diagnostic Cerebral Angiography : A Randomized Clinical Trial
CONCLUSION: Radial artery access is non-inferior to femoral artery access for procedural success in cerebral angiography. A large multicenter trial […]
- Digital Subtraction Myelography is Associated with Less Radiation Dose than CT-based Techniques
CONCLUSION: The radiation dose with DSM appears to be significantly lower than that of CTM (p = 0.0005), when looking at CTM doses both from our […]
- Efficacy and safety of nerinetide for the treatment of acute ischaemic stroke (ESCAPE-NA1): a multicentre, double-blind, randomised controlled trial
BACKGROUND: Nerinetide, an eicosapeptide that interferes with post-synaptic density protein 95, is a neuroprotectant that is effective in preclinical […]
- Hydrocephalus and CSF Disorders
Structural and functional neuroimaging techniques play an essential role for understanding the hydrodynamics of cerebrospinal (CSF) flow and on the […]
- Spontaneous spinal CSF-venous fistulas associated with venous/venolymphatic vascular malformations: report of 3 cases
Spontaneous CSF-venous fistulas may be present in up to one-fourth of patients with spontaneous intracranial hypotension. This is a recently […]
- Lateral decubitus digital subtraction myelography to identify spinal CSF-venous fistulas in spontaneous intracranial hypotension
CONCLUSIONS: Among SIH patients in whom conventional spinal imaging showed no evidence of a CSF leak, DSM in the lateral decubitus position […]
- Management of multiple meningiomas
OBJECTIVE Multiple meningiomas account for 1%-10% of meningiomas. This study describes epidemiological aspects of the disease and its management, […]
- Spontaneous Intracranial Hypotension: A Review and Introduction of an Algorithm For Management
BACKGROUND: Spontaneous intracranial hypotension (SIH) is a condition of low cerebrospinal fluid volume and pressure caused by a leak of […]
- Long-Term Results of Stenting versus Endarterectomy for Carotid-Artery Stenosis
CONCLUSIONS: Over 10 years of follow-up, we did not find a significant difference between patients who underwent stenting and those who underwent […]
- Mediators of the Age Effect in the Carotid Revascularization Endarterectomy Versus Stenting Trial (CREST)
CONCLUSIONS: Plaque length seems to be in the pathway between older age and higher risk of S+D among carotid artery stenting-treated patients, but it […]
- Confusion between bitemporal hemianopia and cecocentral scotoma: reply
No abstract
- The accuracy and utility of contrast-enhanced MR angiography for localization of spinal dural arteriovenous fistulas: the Toronto experience
CONCLUSIONS: CE-MRA is a useful non-invasive examination for the detection and localization of SDAVF. CE-MRA facilitates but does not replace DSA as […]
- Optic chiasm involvement on MRI with ethambutol-induced bitemporal hemianopia
While ethambutol optic neuropathy usually causes central or cecocentral scotomas, bitemporal visual field defects also have been reported. The […]
- Captured Macro-embolus of Fractured Atheromatous Plaque by the Embolic Protection Device during Carotid Stent Assisted Angioplasty
The authors present a case in which macro-embolus from the ruptured atheromatous plaque developed during carotid artery stenting (CAS). A 63-year-old […]
- Restenosis after carotid artery stenting and endarterectomy: a secondary analysis of CREST, a randomised controlled trial
BACKGROUND: In the Carotid Revascularization Endarterectomy versus Stenting Trial (CREST), the composite primary endpoint of stroke, myocardial […]
- Vessel wall MRI to differentiate between reversible cerebral vasoconstriction syndrome and central nervous system vasculitis: preliminary results
CONCLUSIONS: Preliminary results suggest that high-resolution contrast-enhanced vessel wall MRI may enable differentiation between reversible […]
- Status epilepticus due to hyperfusion injury post cardiac surgery
No abstract
- Magnetic resonance imaging demonstration of a single lesion causing Wallerian degeneration in ascending and descending tracts in the spinal cord
A magnetic resonance image of a 50-year-old man with a remote history of cervical spine injury showed focal myelomalacia at C5 and hyperintense areas […]
- Case of the month #140. Isolated cortical vein thrombosis of left vein of Labbe
No abstract
- Spontaneous C1-2 CSF leak treated with high cervical epidural blood patch
No abstract
- Imaging of the intracranial venous system
CONCLUSION: When available, MR supplemented with the technique of triggered gadolinium-enhanced MRV is the method of choice for the diagnosis of […]
- Fourth ventricle epidermoid tumor: radiologic, intraoperative, and pathologic findings
No abstract
- The dural venous sinuses: normal intraluminal architecture defined on contrast-enhanced MR venography
CONCLUSION: CE-MRV elucidates structures normally found within the dural sinuses. These consist of AGs and Willis cords. This report confirms and […]
- Evaluating contrast kinetics by acquiring 2D images during 3D contrast-enhanced MR angiography
CONCLUSION: Integrating 2D and 3D sequences into one sequence to monitor contrast kinetics through the neurovasculature is feasible without the need […]