Abstract：
:Microvascular blood flow is commonly calculated from a "centerline" velocity derived from the dual-slit method. This is done by relating the computed centerline velocity to an average velocity through an empirically derived conversion factor. To determine the physical basis of the conversion factor, we utilized a Fourier transform and indicator dilution theory to model the parameters governing the conversion factor. We assumed Poiseuille flow from slit 1 to 2 and that the signals from the two slits were sinusoidal functions. Under these conditions, the conversion factor was found to depend primarily on a dimensionless time which is the product of the frequency of the sinusoidal signals and their time delay. Theory shows that if this dimensionless time is in the range of 3 to 7, the conversion factor lies within 1.5 to 1.7. Analysis of original dual-slit samples showed the conversion factor, obtained from the data of five arterioles and three venules, to be 1.58 +/- 0.03, and independent of the microvessel diameter.
journal_name
Microvasc Resjournal_title
Microvascular researchauthors
Lee JS,Duling BRdoi
10.1016/0026-2862(89)90046-0subject
Has Abstractpub_date
1989-05-01 00:00:00pages
280-8issue
3eissn
0026-2862issn
1095-9319journal_volume
37pub_type
杂志文章abstract：:The steroid hormone estradiol is suggested to play a protective role in intestinal injury during systemic inflammation (sepsis). Our aim was to determine the effects of specific estradiol receptor (ER-α and ER-ß) agonists on the intestinal microcirculation during experimental sepsis. Male and sham ovariectomized femal...
journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2012.10.002
更新日期：2013-01-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章,评审
doi：10.1016/j.mvr.2020.104027
更新日期：2020-09-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1006/mvre.1993.1060
更新日期：1993-11-01 00:00:00
abstract：:Growing interest in utilizing endothelial cells (ECs) for therapeutic purposes has led to the exploration of human embryonic stem cells (hESCs) as a potential source for endothelial progenitors. In this study, ECs were induced from hESC lines and their biological characteristics were analyzed and compared with both co...
journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2012.06.003
更新日期：2012-09-01 00:00:00
abstract：:It is generally assumed that when a muscle is shortened or extended the total length of capillaries does not change, implying that capillaries are nondistensible, longitudinally. On the basis of stereological estimates of capillary anisotropy versus sarcomere length, we propose that as long as capillaries are in a tor...
journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/0026-2862(90)90008-f
更新日期：1990-07-01 00:00:00
abstract：BACKGROUND:Sedentary behaviour is linked to increased cardiovascular disease risk in Rheumatoid Arthritis (RA), but the biological processes underlying this relationship are not understood. OBJECTIVES:To investigate the cross-sectional associations of habitual sedentary behaviour, with endothelial function in RA. MET...
journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2018.01.005
更新日期：2018-05-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/0026-2862(90)90032-m
更新日期：1990-11-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2006.04.007
更新日期：2006-11-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2012.10.005
更新日期：2013-01-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章,评审
doi：10.1016/j.mvr.2009.12.004
更新日期：2010-05-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2004.08.003
更新日期：2004-11-01 00:00:00
abstract：:Current tissue engineering techniques have failed to provide an established microvasculature in skin substitutes, a requisite for the maintenance of graft viability and rapid revascularization subsequent to graft transplantation in vivo. To improve outcomes for both conventional skin grafts and skin substitutes, the e...
journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2007.04.012
更新日期：2008-01-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2018.05.008
更新日期：2018-11-01 00:00:00
abstract：OBJECTIVE:To assess the morphology of the lymphatic system pre- and postoperatively in patients undergoing microsurgical reconstructions of the lymphatic vessels. MATERIALS AND METHODS:8 lower extremities in 4 consecutive patients with secondary unilateral lymphedema of the lower extremities were examined by MR lympha...
journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2008.03.003
更新日期：2008-05-01 00:00:00
abstract：:An increasing body of evidence suggests that the deleterious effects of Acute Kidney Injury (AKI) on remote organ function could, at least in part, be due to loss of the normal balance of immune, inflammatory, and soluble mediator metabolism that attends injury of the tubular epithelium. Such dysregulation, acting at ...
journal_title：Microvascular research
pub_type： 杂志文章,评审
doi：10.1016/j.mvr.2008.09.001
更新日期：2009-01-01 00:00:00
abstract：:Endometriosis, the presence of endometrium-like tissue outside of the uterine cavity, is a common disease among women of reproductive age. Typical symptoms include abdominal pain and painful menstruation. In addition, endometriosis is associated with reduced fertility. Current treatment modalities, the surgical remova...
journal_title：Microvascular research
pub_type： 杂志文章,评审
doi：10.1016/j.mvr.2007.04.008
更新日期：2007-09-01 00:00:00
abstract：UNLABELLED:Metabolic syndrome (MetS) increases the risk of the subsequent development of cardiovascular disease. This study aimed to determine if the harmonic indexes of finger photoplethysmography (PPG) waveforms can be used to discriminate different arterial pulse transmission conditions between MetS and healthy subj...
journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2016.04.001
更新日期：2016-07-01 00:00:00
abstract：:Vessel size index (R(v), μm) has been proposed as a quantitative magnetic resonance imaging (MRI) derived imaging biomarker in oncology, for the non-invasive assessment of tumour blood vessel architecture and vascular targeted therapies. Appropriate pre-clinical evaluation of R(v) in animal tumour models will improve ...
journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2012.08.001
更新日期：2012-11-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/0026-2862(85)90008-1
更新日期：1985-01-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2009.01.002
更新日期：2009-05-01 00:00:00
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pub_type： 临床试验,杂志文章,随机对照试验
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更新日期：2003-01-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2004.08.001
更新日期：2004-11-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1006/mvre.2000.2289
更新日期：2001-01-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
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更新日期：2019-09-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/0026-2862(84)90054-2
更新日期：1984-03-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2010.04.001
更新日期：2010-09-01 00:00:00
abstract：:A cytochemical study of vascular and cellular development in fetal adipose tissue was conducted utilizing 10 plant lectins (fluorescein isothiocyanate (FITC)-labeled), antibodies against laminin, types II and IV collagen, and a probe for actin. Throughout fetal development (50-110 days) blood vessels were stained by g...
journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/0026-2862(91)90012-z
更新日期：1991-01-01 00:00:00
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journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2016.04.006
更新日期：2016-09-01 00:00:00
abstract：:Innate immunity is characterized by the coordinated activity of multiple leukocytes mobilizing at or near the site of tissue injury. Slow rolling and/or adherent leukocytes have been shown to hydrodynamically recruit free-stream leukocytes to a model of inflamed tissue. In this paper, we numerically investigate the hy...
journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/j.mvr.2017.09.002
更新日期：2018-01-01 00:00:00
abstract：:This study was undertaken to determine if coronary vascular permeability (CVP) increases and if myocardial edema develops in the canine heart after local exposure to histamine. Histamine (50 or 15 micrograms/min) or compound 48/80 (0.1-0.2 mg/kg) was infused into the left anterior descending coronary artery (LAD) of o...
journal_title：Microvascular research
pub_type： 杂志文章
doi：10.1016/0026-2862(91)90034-9
更新日期：1991-05-01 00:00:00
