Results 21 to 30 of about 1,361,337 (156)

RELIABILITY OF DOPPLER ECHOCARDIOGRAPHIC STROKE VOLUME MEASUREMENT [PDF]

, 1992
To evaluate the accuracy and utility of the echocardiographic Doppler method of determining the stroke volume, the stroke volume was measured in 64 instances in 15 patients and compared to the simultaneous thermodilution stroke volume determinations ...
Takashi, YAJIMA, Toshihiko, TAKAMOTO, Hiroshi, ITo, Michiaki, HIROE, Fumiaki, MARUMO, Masao, NITTA, Michiko, ISHIMINE, Shigeru, NAKAMURA   +7 more
core   +1 more source

Pulsed wave and color Doppler echocardiography and cardiac catheterization findings in bilateral pulmonary vein stenosis

, 1998
Pulmonary vein stenosis is a rare condition that usually is congenital in origin; it is almost invariably fatal in its bilateral and severe forms. It is often overlooked, however, during clinical examination, routine echocardiography, and even at cardiac
장양수, 하종원, 정남식
core   +1 more source

Evaluations of Left Anterior Descendant Coronary Artery Stenosis by Transthoracic Doppler Echocardiography as Compared with Physiological Parameters Measured by Pressure Wire [PDF]

, 2022
Background: In coronary angiography (CAG), fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) are widely measured for evaluating physiological ischemia and indication for percutaneous coronary intervention (PCI). On the other hand, the
Harada, Osamu, Horinaka, Shigeo, Ishimitsu, Toshihiko, Ito, Nobuhiko   +3 more
core   +1 more source

Color Doppler Echocardiographic Assessment of Valvular Regurgitation in Normal Infants

Journal of the Formosan Medical Association, 2010
Despite valvular regurgitation being a common finding in children, its prevalence in infants is unclear. The aim of this study was to determine the presence and severity of valvular regurgitation in normal infants using echocardiographic screening ...
Shu-Ting Lee, Meng-Hsun Lin
doaj   +1 more source

Acousto-optic frequency switching for single-camera planar Doppler velocimetry [PDF]

, 2001
A single-camera Planar Doppler velocimetry system has been demonstrated, in which illumination beams at two closely-spaced optical frequencies are derived from a single Argon-ion laser.
Nobes, David S., Tatam, Ralph P., Ford, Helen D., David S. Nobes, Helen D. Ford, Ralph P. Tatam   +5 more
core   +1 more source

Anomalous Origin of a Right Coronary Artery from the Pulmonary Artery in a Middle-Aged Woman

JACC: Case Reports, 2020
A 53-year-old female patient presented for evaluation of a murmur. The examination revealed a 2/6 systolic ejection murmur in the left upper sternal border.
Yogamaya Mantha, MD, Mark Feldman, MD, Andrew Assaf, MD, Rakushumimarika Harada, MD, David Musselman, MD, Michinari Hieda, MD, MS, PhD, Darryl Kawalsky, MD   +6 more
doaj   +1 more source

Diagnosis of Simultaneous Atrial and Ventricular Mechanical Performance in Patients with Systemic Sclerosis

Biology, 2022
Objective: Cardiac involvement is a predictor of poor prognosis in patients with systemic sclerosis (SSc); therefore, preclinical diagnosis of heart involvement is crucial.
Mohammadbagher Sharifkazemi, Mohammadali Nazarinia, Alireza Arjangzade, Mohamad Goldust, Zahra Hooshanginezhad   +4 more
doaj   +1 more source

'Color Doppler stripes’ make it difficult to diagnose the severity of valvular heart diseases: a report of two cases

Cardiovascular Ultrasound
Background Echocardiography remains the reference-standard imaging technique for assessing valvular heart disease (VHD), but artifacts like the ‘color Doppler stripe’ can complicate diagnosis.
Yuichi Baba, Yuri Ochi, Juri Kawaguchi, Azumi Takiishi, Daigo Hirakawa, Toru Kubo, Naohito Yamasaki, Hiroaki Kitaoka   +7 more
doaj   +1 more source

Normal Echocardiographic Findings in Healthy Pigeons [PDF]

Iranian Journal of Veterinary Surgery, 2017
Objective- The purpose of this study was to investigate the feasibility of performing echocardiography in apparently healthy pigeons, and measurement of the quantitative cardiac indices using B-mode and Doppler techniques.
Majid Masoudifard, Vajiheh Rahimi Bidgoli, Seyed Ahmad Madani, Alireza Vajhi, Somayye Davoodipoor, Yasamin Vali   +5 more
doaj  

Color Doppler Echocardiographic Study on the Incidence and Natural History of Early-Infancy Muscular Ventricular Septal Defect

Pediatrics and Neonatology, 2011
Most small muscular ventricular septal defect (M-VSD) types have been diagnosed using color Doppler echocardiography. The purpose of this study was to understand the incidence of small M-VSD in the neonatal period and analyze the natural history of these
Jia-Kan Chang, Wen-Yen Jien, Hui-Lan Chen, Kai-Sheng Hsieh   +3 more
doaj   +1 more source