A retrospective, single-center review from 2010 to 2018. Of 211 patients with asymptomatic 80% 99% stenosis based on an end-diastolic velocity of >140 cm/s duplex ultrasonography, 35 (17%) were treated nonoperatively or delayed operation >6 months later because severe medical comorbidities (37%), advanced age (17%), no referral for intervention (14%), patient refusal other concomitant cerebrova...

Hepatorenal failure, a well-recognized complication of established liver disease, is characterized by early renal hemodynamic changes (vasoconstriction) before clinically recognized kidney disease. This renal vasoconstriction (increased renal vascular resistance) should be detectable noninvasively by Doppler ultrasonography. We studied whether renal Doppler ultrasonography detects abnormalities...

the unique properties of air-cooled bainitic steels have been described. a series of mn containing air-cooled bainitic steels invented by authors is presented in this paper: including low carbon granular bainitic steels, low carbon grain-boundary allotriomorphic ferrite/granular bainite duplex steels, medium and medium high carbon bainite/martensite duplex steel, and low carbon carbide free bai...