Multiple sclerosis is a chronic neurological disease that affects the brain and spinal cord. In Phoenix and across Arizona, MS remains underdiagnosed or delayed due to overlapping symptoms with other neurological disorders. At Center for Neurology and Spine (CNS), we emphasize early diagnosis because early treatment can delay disability progression and significantly improve quality of life.
Until recently, neurologists heavily relied on lumbar punctures to detect oligoclonal bands (OCBs) in the CSF—proteins that suggest neuroinflammation. While helpful, lumbar punctures are invasive, often painful, and associated with post-lumbar puncture headaches, back pain, and lost work time. For Phoenix residents seeking neurology care, this process can be a significant burden.
A 2025 study published in Neurology Open Access has validated the central vein sign (CVS) as a non-invasive, MRI-based biomarker for MS. This sign highlights small veins visible at the center of MS brain lesions using a specialized MRI sequence called T2*-weighted imaging.
What makes CVS especially compelling is the “rule of 6”—if a patient has six lesions with visible central veins, MS can be confidently diagnosed, bypassing the need for lumbar puncture altogether.
The MRI scanners required for this six-minute sequence are available in most Phoenix neuroimaging centers, including those affiliated with CNS. Our 3T MRI machines offer the resolution needed to visualize the CVS, which means this innovative method is ready for real-world clinical use in Arizona.
In the study of 99 patients with typical clinically isolated syndrome (CIS):
CVS sensitivity was 91%, while OCB sensitivity was 84%.
CVS had higher tolerability—only 9% reported side effects vs. 75% after lumbar puncture.
All patients preferred MRI over lumbar puncture.
Even more impressively, when focusing on “clinically definite MS” cases, CVS sensitivity rose to 96%, significantly outperforming OCBs (79%).
At CNS, we value not just diagnostic accuracy but also patient comfort. In the study:
33% of patients reported headaches after LP.
27% experienced back pain.
15% needed days off work due to LP side effects.
In contrast, MRI was overwhelmingly preferred, with patients describing it as faster, less stressful, and far less painful.
This change isn’t just technical—it’s transformational. For referring physicians in Phoenix, Scottsdale, Chandler, Mesa, and Glendale, the adoption of CVS means faster referral resolution, reduced diagnostic ambiguity, and improved trust with patients seeking neurological clarity. For families, it means peace of mind and fewer obstacles in managing a potentially life-altering condition.
Located in Phoenix, AZ, CNS is committed to offering the most advanced, evidence-based diagnostic tools for MS and other neurological conditions. Our neurologists and imaging experts now routinely include central vein sign analysis in our MS diagnostic workup, reducing reliance on painful lumbar punctures when possible.
CVS via MRI is just as accurate as OCBs for MS diagnosis.
The “rule of 6” is simple, quick, and now validated.
MRI is safer and more tolerable than lumbar puncture.
Phoenix-based neurologists can implement this immediately with current 3T MRI infrastructure.
If you or a loved one are experiencing symptoms like vision loss, numbness, or muscle weakness, contact CNS to schedule an evaluation. We proudly serve the greater Phoenix metro area, including Tempe, Gilbert, and Peoria, and specialize in early MS detection using cutting-edge tools like the central vein sign.
Call us at (602) 555-1234 or visit www.centerforneurologyandspine.com to schedule a consultation.