Three-phase bone studies in hemiplegia with reflex sympathetic dystrophy and the effect of disuse
Eighty-five patients with cerebral vascular accidents were assessed with three-phase bone scintigraphy of the hands and with whole-body delayed bone imaging. Nine patients (10%) had normal three-phase bone images. Fifty-five patients (65%) showed decreased blood flow and blood-pool images of the hands and wrists with normal delayed bone scintigrams, indicating the effect of paralysis or disuse. Twenty-one patients (25%) had diffuse increased uptake with periarticular accentuation, felt to be bone-scintigraphic evidence of reflex sympathetic dystrophy of the hands and wrists; in two patients this occurred before its clinical appearance. Thriteen of the 21 reflex sympathetic dystrophy syndromes (RDS)-involved limbs (62%) had increased blood flow, whereas 8 (38%) had decreased flow. Gross limb blood flow appears to be related to the degree of muscle activity, but flow may be altered by the presence of sympathetic changes. A possible dissociation between whole-limb flow and bone blood flow in paralyzed limbs involved with RDS is discussed.
- Research Organization:
- St. Michael's Hospital, Toronto, Ontario
- OSTI ID:
- 6783627
- Journal Information:
- J. Nucl. Med.; (United States), Vol. 25:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
BLOOD FLOW
DYNAMIC FUNCTION STUDIES
SKELETON
SCINTISCANNING
TECHNETIUM 99
VASCULAR DISEASES
PATHOLOGY
HANDS
ISOMERIC NUCLEI
MUSCLES
PATIENTS
PHOSPHONATES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
BODY AREAS
COUNTING TECHNIQUES
DIAGNOSTIC TECHNIQUES
DISEASES
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIMBS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
ORGANS
RADIOISOTOPE SCANNING
RADIOISOTOPES
TECHNETIUM ISOTOPES
YEARS LIVING RADIOISOTOPES
550601* - Medicine- Unsealed Radionuclides in Diagnostics
550900 - Pathology