[Cerebral single-photon emission-computed tomography. A semiquantitative analysis of vascular areas in patients with cerebrovascular pathology].
BACKGROUND
Brain SPECT perfusion studies in patients with cerebral stroke may be useful to evaluate distant perfusion abnormalities.


METHODS
99mTc-HMPAO brain SPECT studies were performed in 17 patients with ischemic lesions in the basal ganglia and/or internal capsule demonstrated by NMR. Regions of interest were adjusted in representative transverse slices to the vascular territories of the anterior, middle, posterior and communicating cerebral arteries.


RESULTS
Patients with ischemic lesions in the right basal ganglia showed increased cerebral perfusion in the left middle artery territory (0.95 +/- 0.13 versus 0.80 +/- 0.06; p = 0.0365). Patients with ischemic lesions in the left basal ganglia showed increased perfusion in the right anterior artery territory (0.93 +/- 0.09 versus 0.82 +/- 0.09; p = 0.0464), in the left anterior artery territory (0.93 +/- 0.09 versus 0.83 +/- 0.14; p = 0.0464), in the left middle artery territory (0.92 +/- 0.09 versus 0.78 +/- 0.05; p = 0.0079) and in the left posterior artery territory (1.05 +/- 0.14 versus 0.90 +/- 0.09; p = 0.036). Patients with ischemic lesions in the right internal capsule showed increased perfusion in the right posterior artery territory (0.95 +/- 0.11 versus 1.10 +/- 0.18; p = 0.0431).


CONCLUSIONS
These results show the presence of delayed luxury perfusion phenomena in regions distant from the ischemic site.
Torres
G
G
Servicio de Medicina Nuclear, Hospital de la Santa Creu i Sant Pau, Barcelona.
Martínez-Duncker
C
C
Pujol
J
J
Estorch
M
M
Berná
L
L
Martí-Vilalta
J L
JL
Carrió
I
I
D000368:Aged; D000369:Aged, 80 and over; D001921:Brain / Q000000981:diagnostic imaging*; D002545:Brain Ischemia / Q000000981:diagnostic imaging; D002560:Cerebrovascular Circulation; D002561:Cerebrovascular Disorders / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015609:Organotechnetium Compounds; D010091:Oximes; D019690:Technetium Tc 99m Exametazime; D015899:Tomography, Emission-Computed, Single-Photon / Q000379:methods*
D015609:Organotechnetium Compounds; D010091:Oximes; D019690:Technetium Tc 99m Exametazime
Tomografía cerebral por emisión de fotón único. Análisis semicuantitativo de territorios vasculares en pacientes con patología vascular cerebral.