A method to quantitate cerebral blood flow using a rotating gamma camera and iodine-123 iodoamphetamine with one blood sampling

1994 ◽  
Vol 21 (10) ◽  
Author(s):  
Hidehiro Iida ◽  
Hiroshi Itoh ◽  
PeterM. Bloomfield ◽  
Masahiro Munaka ◽  
Shuichi Higano ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Gamma Camera ◽  
Blood Sampling ◽  
Iodine 123

GAMMA CAMERA TECHNIQUE FOR MEASURING REGIONAL CEREBRAL BLOOD FLOW IN CATS

1980 ◽  
Vol 15 (5) ◽  
pp. 388
Author(s):  
Dennis D. Patton ◽  
Philip Weinstein ◽  
Richard Reinert ◽  
David Telles
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Regional Cerebral Blood Flow ◽  
Gamma Camera ◽  
Regional Cerebral Blood

Regional cerebral blood flow and blood volume measured with the gamma camera

1972 ◽  
Vol 4 (3) ◽  
pp. 133-140 ◽  
Author(s):  
N. T. Mathew ◽  
J. S. Meyer ◽  
R. L. Bell ◽  
P. C. Johnson ◽  
C. R. Neblett
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Blood Volume ◽  
Regional Cerebral Blood Flow ◽  
Gamma Camera ◽  
Regional Cerebral Blood

Global Oxygen Extraction Fraction by Blood Sampling to Anticipate Cerebral Hyperperfusion Phenomenon After Carotid Artery Stenting

Neurosurgery ◽  
2014 ◽  
Vol 75 (5) ◽  
pp. 546-551 ◽  
Author(s):  
Tomonori Iwata ◽  
Takahisa Mori ◽  
Yuichi Miyazaki ◽  
Yuhei Tanno ◽  
Shigen Kasakura ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Carotid Artery ◽  
Carotid Artery Stenting ◽  
Blood Sampling ◽  
Oxygen Extraction Fraction ◽  
Cerebral Hyperperfusion Syndrome ◽  
Hyperperfusion Syndrome ◽  
Cerebral Hyperperfusion ◽  
Extraction Fraction

Abstract BACKGROUND: Cerebral hyperperfusion syndrome sometimes occurs after carotid revascularization in patients with severe hemodynamic failure. To prevent cerebral hyperperfusion syndrome, cerebral hyperperfusion phenomenon (CHP) must be detected early. Single-photon emission computed tomography (SPECT) is useful for detecting CHP, but it is impractical on a daily basis. A tool with high availability to find CHP is desired. OBJECTIVE: To investigate whether global oxygen extraction fraction (OEF) by a blood sampling method is useful for indicating CHP after carotid artery stenting (CAS). METHODS: When patients underwent elective CAS from September 2010 to August 2012, we performed blood sampling for OEF calculation and SPECT before and immediately after elective CAS. Data were collected prospectively. OEF was calculated from the cerebral arteriovenous oxygen difference. Cerebral blood flow was measured in the affected middle cerebral artery (MCA) territory and in the ipsilateral cerebellum by SPECT. The ratio of MCA to cerebellar activity was defined as cerebral blood flow in the affected MCA territory divided by cerebral blood flow in the ipsilateral cerebellar hemisphere. Probable CHP was defined as ≥10% increase in the ratio of MCA to cerebellar activity after CAS. The relationship between peri-CAS OEF and probable CHP was evaluated. RESULTS: Of the 96 patients enrolled, 92 patients were analyzed. Probable CHP occurred in 17 patients. Post-CAS OEF was related to probable CHP (P < .01), but pre-CAS OEF was not. The receiver-operating characteristic curve showed that the cutoff value was 45% for probable CHP (P < .001). CONCLUSION: An increase in blood sampling OEF immediately after CAS was related to probable CHP; then the oxygen demand should be reduced.

scholarly journals 171. Regional Cerebral Blood Flow Measured by a Rotating Gamma Camera and by a Ring Camera

1993 ◽  
Vol 49 (2) ◽  
pp. 291
Author(s):  
HIROO OTAKI ◽  
EIKICHI NOGUCHI ◽  
YOSHIHIRO YAMAZAKI ◽  
HIROMU NAGASAWA ◽  
IKUO ODANO
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Regional Cerebral Blood Flow ◽  
Gamma Camera ◽  
Regional Cerebral Blood
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