Comment on “Transcranial color Doppler sonography on healthy pre-school children: Flow velocities and total cerebral blood flow volume” by Lin KL et al. Brain & Development 2007;29:64–68

2007 ◽  
Vol 29 (9) ◽  
pp. 607
Author(s):  
Vijay K. Sharma ◽  
Bernard P.L. Chan
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Brain Development ◽  
School Children ◽  
Doppler Sonography ◽  
Color Doppler ◽  
Color Doppler Sonography ◽  
Flow Volume ◽  
Blood Flow Volume ◽  
Transcranial Color Doppler

scholarly journals Feasibility of transabdominal Doppler sonography for studying uterine blood flow characteristics in cycling gilts

2018 ◽  
Vol 46 (03) ◽  
pp. 154-163 ◽  
Author(s):  
Catherine Herlt ◽  
Rosa Stark ◽  
Haukur Sigmarsson ◽  
Johannes Kauffold
Keyword(s):  
Blood Flow ◽  
Estrous Cycle ◽  
Cross Sections ◽  
Doppler Sonography ◽  
Pulse Wave ◽  
Color Doppler ◽  
Flow Characteristics ◽  
Color Doppler Sonography ◽  
Power Pulse ◽  
Uterine Perfusion

Summary Objective: To test for the feasibility of transabdominal Doppler sonography (color, power, pulse wave) to define uterine perfusion characteristics throughout the estrous cycle in gilts. Materials and methods: A total of 15 gilts were synchronized for estrus and scanned in their following spontaneous cycle while being restrained in a purpose-designed mobile crate. To define uterine perfusion characteristics, vessels in between and within uterine cross-sections were imaged and recorded as video sequences to be analyzed by PixelFlux® software for perfused area (Amix), blood flow velocity (vmix) and intensity (Imix) as well as resistance (RIvmix) and pulsatility index (PIvmix). Results: Color Doppler sonography proved to be the only feasible technique, as it was less affected by animal movements than power and pulse wave sonography. As determined by color Doppler sonography, all five parameters determined showed specific patterns through the estrous cycle, i. e. Amix, vmix, Imix were high in proestrus, decreased in estrus and remained low in midestrus and most parts of diestrus; RIvmix and PIvmix with inversely paralleled patterns. Conclusion and clinical relevance: This study has demonstrated that transabdominal color Doppler but not power and pulse wave Doppler sonography is feasible to be performed in crate-restrained gilts for studying uterine perfusion characteristics during the estrous cycle, and that changes of uterine perfusion over the course of the estrous cycle can be clearly followed by color Doppler sonography. Results encourage the use of color Doppler sonography for studying i. e. uterine capacity or uterus related infertility such as for cases of clinically unapparent endometritis.

Late circulatory dysfunction and decreased cerebral blood flow volume in infants with periventricular leukomalacia

2008 ◽  
Vol 30 (9) ◽  
pp. 589-594 ◽  
Author(s):  
Sumio Fukuda ◽  
Keisuke Mizuno ◽  
Hiroki Kakita ◽  
Takenori Kato ◽  
Mohamed Hamed Hussein ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Periventricular Leukomalacia ◽  
Flow Volume ◽  
Blood Flow Volume

scholarly journals Extracranial carotid Doppler ultrasound evaluation of cerebral blood flow volume in COPD patients

2006 ◽  
Vol 100 (10) ◽  
pp. 1826-1833 ◽  
Author(s):  
Ramazan Albayrak ◽  
Fatma Fidan ◽  
Mehmet Unlu ◽  
Murat Sezer ◽  
Bumin Degirmenci ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Doppler Ultrasound ◽  
Flow Volume ◽  
Blood Flow Volume ◽  
Ultrasound Evaluation ◽  
Copd Patients ◽  
Carotid Doppler
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