Pulsed Doppler echocardiography in the diagnosis and estimation of severity of aortic insufficiency

Ciobanu, M; Abbasi, Abdul S.; Allen, Marty; Hermer, Alan; Spellberg, Richard D.

doi:10.1016/0002-9149(82)90510-0

Cited by 210 publications

(28 citation statements)

References 11 publications

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“…Angio graphy (1) has been the standard clinical technique, but it is invasive, only semiquantitative, and involves radia tion exposure. A variety of echocardiographic and MRI techniques (2)(3)(4)(5)(6)(7)(8)(9)(10) have been studied recently to assess mitral regurgitation. They focused on the jet side of the regurgitant valve in an attempt to correlate the geomet rical parameters of the regurgitant jet in the left atrium with the severity of the disease.…”

mentioning

confidence: 99%

Quantification of mitral regurgitation with MR phase‐velocity mapping using a control volume method

Chatzimavroudis

Oshinski

Pettigrew

et al. 1998

Magnetic Resonance Imaging

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Reliable diagnosis and quantification of mitral regurgitation are important for patient management and for optimizing the time for surgery. Previous methods have often provided suboptimal results. The aim of this in vitro study was to evaluate MR phase‐velocity mapping in quantifying the mitral regurgitant volume (MRV) using a control volume (CV) method. A number of contiguous slices were acquired with all three velocity components measured. A CV was then selected, encompassing the regurgitant orifice. Mass conservation dictates that the net inflow into the CV should be equal to the regurgitant flow. Results showed that a CV, the boundary voxels of which excluded the region of flow acceleration and aliasing at the orifice, provided accurate measurements of the regurgitant flow. A smaller CV provided erroneous results because of flow acceleration and velocity aliasing close to the orifice. A large CV generally provided inaccurate results because of reduced velocity sensitivity far from the orifice. Aortic outflow, orifice shape, and valve geometry did not affect the accuracy of the CV measurements. The CV method is a promising approach to the problem of quantification of the MRV.

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mentioning

confidence: 99%

Quantification of mitral regurgitation with MR phase‐velocity mapping using a control volume method

Chatzimavroudis

Oshinski

Pettigrew

et al. 1998

Magnetic Resonance Imaging

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“…16 21 On the other hand, the aortic regurgitant flow velocity pattern by continuous-wave Doppler echocardiography should be influenced very little by the combined mitral valve diseases, and we could determine the Doppler indexes regardless of concomitant mitral valve diseases. However, in the recording of aortic regurgitant flow velocity patterns by continuous-wave Doppler echocardiography in patients with associated mitral stenosis, another serious problem might arise in some cases: transmitral flow velocity can be mistaken for the aortic regurgitant flow velocity pattern because these patterns are similar.…”

Section: Methodsmentioning

confidence: 99%

Noninvasive evaluation of aortic regurgitation by continuous-wave Doppler echocardiography.

Masuyama¹,

Kodama²,

Kitabatake³

et al. 1986

Circulation

109

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Continuous-wave Doppler echocardiography was used to examine the aortic regurgitant flow velocity pattern in 32 patients with aortic regurgitation (AR) and 10 patients without AR. The aortic regurgitant flow velocity patterns, characterized by a rapid rise in flow velocity immediately after closure of the aortic valve, high peak flow velocity, and a gradual deceleration until the next aortic valve opening, were successfully obtained in 30 of the 32 patients with AR (sensitivity 94%, specificity 100%). The velocity decline was greater in patients with severe AR; thus, the slope of the velocity decline (deceleration) and the time to decline to half the peak velocity (half-time index) were measured from the flow velocity pattern. The deceleration became greater and the half-time index shortened in accordance with angiographic grading of AR (p < .01).

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“…Continuous wave Doppler, pulsed Doppler and color Doppler flow have been widely used to assess the severity of chronic aortic regurgitation (AR) (1)(2)(3)(4). In recent guidelines, it is recommended to use quantitative, semi-quantitative and qualitative echocardiographic parameters together for assesing the severity of AR.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the severity of aortic regurgitation with pulsed wave Doppler velocity profile in the descending aorta

Kalaycı¹,

Kalaycı²,

Bayır³

et al. 2014

Anadolu Kardiyol Derg

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Objective: The quantitative parameters which are used to assess the severity of aortic regurgitation (AR) provide the most accurate information whereas these parameters are difficult and time-consuming. The aim of this study was to get a practical parameter to use in daily practice for assessing the severity of aortic regurgitation. Methods: The study was an observational cohort study on diagnostic accuracy of severity of aortic regurgitation. Thirty-seven patients with aortic regurgitation determined by quantitative parameters (18 patients with severe aortic regurgitation and 19 patients with moderate aortic regurgitation) were included in this study. Each patient's diastolic flow pattern in the descending aorta was examined by pulsed wave Doppler. Systolic and diastolic flow time-velocity integral (TVI), TVI time, systolic and diastolic TVI ratio in the descending aorta were evaluated. In addition to these parameters, dP/dt, peak acceleration time and end-diastolic flow velocity in the diastolic flow were determined. We investigated whether there a significant difference between two groups or not. Receiver operating characteristic (ROC) analysis was used to determine the optimal cut-off values of echocardiographic parameters which were used to identify the severity of aortic regurgitation. Results: The study population was composed of 16 female and 21 male patients. Their mean age was 46.5 years. The mean diastolic flow TVI of patients who had moderate and severe aortic regurgitation was found 10.1 cm and 18.6 cm, respectively (p<0.001). In the ROC curve analysis, the values of diastolic flow TVI above 13.5 cm was found to have 83% sensitivity and 90% specifity to predict the severity of aortic regurgitation (AUC: 0.91, 95% CI 0.80-1.0, p<0.001). Also we investigated the other parameters like systolic flow TVI, the ratio of systolic and diastolic flow TVI, mean diastolic flow time, mean systolic flow time, the ratio of systolic and diastolic flow time, end-diastolic velocity, peak acceleration time, dP/ dt values in evaluation of diastolic flow in the descending aorta. These parameters were found statistically significant in assessing the severity of aortic regurgitation but their statistical power was weak. Conclusion: TVI of diastolic flow which is measured with pulsed wave Doppler in descending aorta could be a practical parameter in assessing the severity of aortic regurgitation. (Anadolu Kardiyol Derg 2014; 14: 427-33)

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Pulsed Doppler echocardiography in the diagnosis and estimation of severity of aortic insufficiency

Cited by 210 publications

References 11 publications

Quantification of mitral regurgitation with MR phase‐velocity mapping using a control volume method

Quantification of mitral regurgitation with MR phase‐velocity mapping using a control volume method

Noninvasive evaluation of aortic regurgitation by continuous-wave Doppler echocardiography.

Assessment of the severity of aortic regurgitation with pulsed wave Doppler velocity profile in the descending aorta

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