Technetium-99m hand perfusion scintigraphy (Raynaud’s scan) as a method of verification in hand arm vibration syndrome: a review

Abstract

It is important to assess the blood flow of fingers in the verification of hand-arm vibration syndrome. In the Republic of Korea, most assessments of the blood flow in the fingers are performed using a cold provocation test with finger skin color change. However, this test is a non-objective method with a relatively low sensitivity, leading to possible social and legal problems. Thus, we reviewed the characteristics of several tests that assess the blood flow in the fingers. Among these tests, using the radioactive isotope method, Raynaud’s scan has a relatively higher sensitivity and specificity than other tests, provides objective results, and is approachable in many hospitals. So we suggest using Raynaud's scan as an alternative test when cold provocation test with finger skin color change is negative in vibration exposed worker.

Raynaud’s Phenomenon: A Current Update on Pathogenesis, Diagnostic Workup, and Treatment

“…Different protocols exist, with or without cooling the fingers. However, the one-hand-chilling method is often preferred [ 56 , 57 ]. Regardless of the protocol, perfusion scintigraphy has proven effective in distinguishing between normal and RP, as well as between primary and secondary RP [ 56 , 57 ].…”

“…However, the one-hand-chilling method is often preferred [ 56 , 57 ]. Regardless of the protocol, perfusion scintigraphy has proven effective in distinguishing between normal and RP, as well as between primary and secondary RP [ 56 , 57 ]. Dynamic blood flow studies measure finger-to-palm ratios, helping differentiate healthy individuals from those with RP.…”