scholarly journals THE USE OF RADIOACTIVE CARBON DIOXIDE TO MEASURE REGIONAL BLOOD FLOW IN THE LUNGS OF PATIENTS WITH PULMONARY DISEASE

1961 ◽  
Vol 40 (1) ◽  
pp. 1-12 ◽  
Author(s):  
J. B. West ◽  
C. T. Dollery ◽  
P. Hugh-Jones
Keyword(s):  
Carbon Dioxide ◽  
Blood Flow ◽  
Pulmonary Disease ◽  
Regional Blood Flow ◽  
Radioactive Carbon

scholarly journals 127 REGIONAL BLOOD FLOW RESPONSE TO CHANGES IN ARTERIAL CARBON DIOXIDE TENSION (PaCO2) IN NEWBORN LAMBS

1978 ◽  
Vol 12 ◽  
pp. 385-385 ◽  
Author(s):  
Savitri P Kumar ◽  
Angela Karathanos ◽  
Andrew M Rabin ◽  
Ruth M Cortner ◽  
Jonathan P Knisely ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Blood Flow ◽  
Regional Blood Flow ◽  
Carbon Dioxide Tension ◽  
Arterial Carbon Dioxide Tension ◽  
Blood Flow Response ◽  
Arterial Carbon Dioxide ◽  
Flow Response

Assessment of the incorporation of revascularized fibula grafts used for mandibular reconstruction with F-18-PET

2001 ◽  
Vol 40 (02) ◽  
pp. 51-58 ◽  
Author(s):  
H. Schliephake ◽  
van den Hoff ◽  
W. H. Knapp ◽  
G. Berding
Keyword(s):  
Blood Flow ◽  
Regional Blood Flow ◽  
Venous Blood ◽  
Mandibular Reconstruction ◽  
Reference Region ◽  
Osteoblastic Activity ◽  
Non Union ◽  
Range Of Values ◽  
Measured Input

Summary Aim: Determination of the range of regional blood flow and fluoride influx during normal incorporation of revascularized fibula grafts used for mandibular reconstruction. Evaluation, if healing complications are preceded by typical deviations of these parameters from the normal range. Assessment of the potential influence of using “scaled population-derived” instead of “individually measured” input functions in quantitative analysis. Methods: Dynamic F-l 8-PET images and arterialized venous blood samples were obtained in 11 patients early and late after surgery. Based on kinetic modeling regional blood flow (K1) and fluoride influx (Kmlf) were determined. Results: In uncomplicated cases, early postoperative graft K1 - but not Kmlf -exceeded that of vertebrae as reference region. Kmn values obtained in graft necrosis (n = 2) were below the ranges of values observed in uncomplicated healing (0.01 13-0.0745 ml/min/ml) as well as that of the reference region (0.0154-0.0748). Knf values in mobile non-union were in the lower range - and those in rigid non-union in the upper range of values obtained in stable union (0.021 1-0.0694). If scaled population-derived instead of measured input functions were used for quantification, mean deviations of 23 ± 17% in K1 and 12 ± 16% in Kmlf were observed. Conclusions: Normal healing of predominantly cortical bone transplants is characterized by relatively low osteoblastic activity together with increased perfusion. It may be anticipated that transplant necrosis can be identified by showing markedly reduced F− influx. In case that measured input functions are not available, quantification with scaled population-derived input functions is appropriate if expected differences in quantitative parameters exceed 70%.

Basic Ideas and Principles for Quantifying Regional Blood Flow with Nuclear Medical Techniques

1996 ◽  
Vol 35 (05) ◽  
pp. 181-185 ◽  
Author(s):  
H. Herzog
Keyword(s):  
Blood Flow ◽  
Nuclear Medicine ◽  
Regional Blood Flow ◽  
Visual Presentation ◽  
Regional Cerebral Blood ◽  
Basic Principles ◽  
Parametric Images ◽  
Major Application ◽  
Basic Ideas ◽  
The Brain

SummaryThe measurement of blood flow in various organs and its visual presentation in parametric images is a major application in nuclear medicine. The purpose of this paper is to summarize the most important nuclear medicine procedures used to quantify regional blood flow. Starting with the first concepts introduced by Fick and later by Kety-Schmidt the basic principles of measuring global and regional cerebral blood are discussed and their relationships are explained. Different applications and modifications realized first in PET- and later in SPECT-studies of the brain and other organs are described. The permeability and the extraction of the different radiopharmaceuticals are considered. Finally some important instrumental implications are compared.

Regional Blood Flow Patterns along the Length of the Rodent Cochlea

1987 ◽  
Vol 103 (5) ◽  
pp. 176-181 ◽  
Author(s):  
Norma Slepecky ◽  
Clarence Angelborg ◽  
Hans-Christian Larsen
Keyword(s):  
Blood Flow ◽  
Regional Blood Flow ◽  
Flow Patterns ◽  
Blood Flow Patterns
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