Blood flow measurement in reconstructed anterior cruciate ligaments using laser Doppler flowmetry

1998 ◽  
Vol 6 (3) ◽  
pp. 160-164 ◽  
Author(s):  
T. Yamagishi ◽  
Katsuyuki Fujii ◽  
Satoshi Roppongi ◽  
Hiroshi Hatsuumi
Keyword(s):  
Blood Flow ◽  
Laser Doppler Flowmetry ◽  
Flow Measurement ◽  
Laser Doppler ◽  
Blood Flow Measurement ◽  
Cruciate Ligaments ◽  
Doppler Flowmetry ◽  
Anterior Cruciate Ligaments ◽  
Anterior Cruciate

Evaluation of cochlear blood flow measurement by laser Doppler flowmetry

2003 ◽  
Author(s):  
T. Tamura ◽  
A. Okamoto ◽  
N. Kobayashi ◽  
K. Yokoyama ◽  
M. Hasegawa ◽  
...  
Keyword(s):  
Blood Flow ◽  
Laser Doppler Flowmetry ◽  
Flow Measurement ◽  
Laser Doppler ◽  
Blood Flow Measurement ◽  
Cochlear Blood Flow ◽  
Doppler Flowmetry

scholarly journals Evaluation of surface blood flow in intact and ruptured canine cruciate ligaments using laser Doppler flowmetry

2016 ◽  
Vol 29 (05) ◽  
pp. 361-368
Author(s):  
Joakim Testuz ◽  
Judith Howard ◽  
Antonio Pozzi ◽  
Ulrich Rytz ◽  
Christiane Krudewig ◽  
...  
Keyword(s):  
Blood Flow ◽  
Laser Doppler Flowmetry ◽  
Intraclass Correlation ◽  
Clinical Signs ◽  
Research Society ◽  
Distal Portion ◽  
Laser Doppler ◽  
Cruciate Ligaments ◽  
Doppler Flowmetry ◽  
Measurement Cycle

SummaryObjective: To evaluate the usefulness of laser Doppler flowmetry (LDF) to measure surface blood flow in canine cruciate ligaments, compare measurements in different sites of intact and partially ruptured canine cranial cruciate ligaments (CrCL) and intact caudal cruciate ligaments (CaCL), and investigate any association between surface blood flow in partially ruptured CrCL and synovitis or duration of clinical signs.Study design: Case-controlled clinical study.Animals: Sixteen dogs with partially ruptured CrCL and five dogs with intact CrCL.Methods: Blood cell flux (BCF) readings during three measurement cycles using LDF at two sites in each ligament (mid-substance and the distal portion of the CrCL, and mid-substance and the proximal portion of the CaCL) were recorded. Synovial changes were graded grossly and histologically using the Osteoarthritis Research Society International histopathology scoring system.Results: The within-run coefficients of variation (CV) for a single BCF measurement cycle were 12.2% and 12.7% in the ruptured and intact CrCL groups, respectively. The between-run CV for three measurement cycles was 20.8% and 14.8%, respectively. The intraclass correlation coefficient (ICC, absolute agreement) was 0.66 for a single measurement cycle and 0.86 for the average of three cycles.No difference in average BCF readings was found between any two sites in either group, but BCF readings in both CrCL sites were significantly higher in the ruptured CrCL group than the intact CrCL group. No associations between BCF and synovial grades or duration of lameness were identified.Conclusions: Laser Doppler flowmetry can be used to assess surface blood flow in intact and partially ruptured canine cruciate ligaments with acceptable precision. Using this method, surface blood flow appears greater in partially ruptured canine CrCL than intact CrCL. Further studies are required to determine if this is a sequela of trauma or synovitis.

The use of laser doppler flowmetry to evaluate anterior cruciate blood flow

1987 ◽  
Vol 5 (1) ◽  
pp. 150-153 ◽  
Author(s):  
Frank J. Schlehr ◽  
Thomas A. Limbird ◽  
Marc F. Swiontkowki ◽  
Tony S. Keller
Keyword(s):  
Blood Flow ◽  
Laser Doppler Flowmetry ◽  
Laser Doppler ◽  
Doppler Flowmetry ◽  
Anterior Cruciate

Peculiarities of microcirculation in periodont tissues in children of key age groups sufficient type 1 diabetes. Part II

2019 ◽  
Vol 24 (2) ◽  
pp. 108-119 ◽  
Author(s):  
B. N. Davydov ◽  
D. A. Domenyuk ◽  
S. V. Dmitrienko
Keyword(s):  
Diabetes Mellitus ◽  
Blood Flow ◽  
Type 1 Diabetes ◽  
Type 1 Diabetes Mellitus ◽  
Laser Doppler Flowmetry ◽  
Laser Doppler ◽  
Diabetic Microangiopathy ◽  
Healthy Children ◽  
Doppler Flowmetry

Relevance. Morpho-functional changes in peripheral circulation established in type 1 diabetes mellitus correlate with changes in central hemodynamics, allowing the use of microcirculation indicators as diagnostic and prognostic criteria for assessing the degree of functional vascular disorders. Identifcation of microcirculation features of the blood by the method of laser Doppler flowmetry in children with different experience of type 1 diabetes in key age categories.Materials and methods. The study included 67 children with type 1 diabetes mellitus aged 12-15 years with an experience of the disease from six months to ten years. The comparison group consisted of 38 healthy children. The state of the microvasculature was assessed by laser Doppler flowmetry using a laser analyzer for capillary blood flow LAKK-OP.Results. In children with an experience of type 1 diabetes of less than two years, microcirculation disorders in periodontal tissues correspond to the hyperemic form, accompanied by increased perfusion, a decrease in the amplitude of low-frequency oscillations, increased heart rate, high blood flling, and blood flow bypass. For children with an endocrinopathy experience of more than three years, microcirculation disorders correspond to a stagnant form, combined with a decrease in perfusion due to stagnation of blood in the venular link, endothelial domination with suppression of neurogenic and cardiac fluctuations, low efciency and redistribution of blood flow in favor of the nutritive link.Conclusions. With the increase in experience, the degree of compensation of type 1 diabetes, the progression of diabetic microangiopathy, it is advisable to designate two stages of development of microcirculatory disorders. Early – compensatory with active adaptation, including neurogenic and endothelial regulation mechanisms. Late – decompensation with passive adaptation, supporting the effectiveness of microcirculation due to myogenic control of regulation, shunting and increasing the rate of blood outflow.

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