Measurement of Internal Diameter Changes and Pulse Wave Velocity in Fetal Descending Aorta Using the Ultrasonic Phased-Tracking Method in Normal and Growth-Restricted Fetuses

Miyashita, Shuhei; Murotsuki, Jun; Muromoto, Jin; Ozawa, Keiya; Yaegashi, Nobuo; Hasegawa, Hideyuki; Kanai, Hiroshi

doi:10.1016/j.ultrasmedbio.2014.12.008

Cited by 19 publications

(32 citation statements)

References 32 publications

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“…The PTM, which was employed in this study, has been applied to clinical studies by many researchers, that is, noninvasive evaluation of the myocardial property of contraction and relaxation [5,30,31], elasticity of the arterial wall [32][33][34][35][36], and fatal cardiac or artery [7,8,37]. Although in this study, we reported only V ave during systolic time at the left ventricular septum, we hypothesize that the development of more detailed myocardial damaging process becomes clear by analyzing the continuous temporal relationship with V ave , V max , and color image.…”

Section: Discussionmentioning

confidence: 99%

“…Noninvasive early detection of anthracycline-induced cardiotoxicity in patients with hematologic malignancies using the phased tracking method micrometers up to several hundred Hertz, which has neither been recognized in TDI nor standard M-mode, B-mode, 2D-strain echocardiography. These fine measurement characteristics and the rapid minute amplitude have allowed measurement of the fetal heart and the fetal descending aorta of normal and growth-restricted fetuses [7,8].…”

Section: Original Researchmentioning

confidence: 99%

“…One such technique is the phased tracking method (PTM) , a high‐resolution Doppler measurement that is useful for detecting cardiac transmural changes , the PTM is measured on minute amplitude on the order of several tens of micrometers up to several hundred Hertz, which has neither been recognized in TDI nor standard M‐mode, B‐mode, 2D‐strain echocardiography. These fine measurement characteristics and the rapid minute amplitude have allowed measurement of the fetal heart and the fetal descending aorta of normal and growth‐restricted fetuses .…”

Section: Introductionmentioning

confidence: 99%

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Noninvasive early detection of anthracycline‐induced cardiotoxicity in patients with hematologic malignancies using the phased tracking method

et al. 2016

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Anthracyclines are among the most effective and widely used anticancer drugs; however, their use is limited by serious cardiotoxicity. Early detection is necessary to prevent the high mortality rate associated with heart failure (HF). We evaluated cardiac function in 142 patients using conventional echocardiography and the phased tracking method (PTM), which was measured using the minute vibration and the rapid motion components, neither of which is recognized in standard M‐mode nor in tissue Doppler imaging. For systolic function comparison, we compared left ventricular ejection fraction (LVEF) in conventional echocardiography with the average velocity of ventricular septum myocytes (Vave) in the PTM. The Vave of 12 healthy volunteers was 1.5 (m/s)/m or more. At baseline of 99 patients, there was a positive correlation between LVEF and Vave in all patients. There were no significant differences in baseline cardiac function between patients with and without HF. There was a negative correlation between the cumulative anthracycline dose and LVEF or Vave among all patients. We determined that Vave 1.5 (m/s)/m was equivalent to LVEF 60%, 1.25 (m/s)/m to 55%, and 1.0 (m/s)/m to 50%. During the follow‐up period, there was a pathological decrease in LVEF (<55%) and Vave (<1.25 m/s/m) in patients with HF; decreases in Vave were detected significantly earlier than those in LVEF (P < 0.001). When Vave declined to 1.5 (m/s)/m or less, careful continuous observation and cardiac examination was required. When Vave further declined to 1.0 (m/s)/m or lower, chemotherapy was postponed or discontinued; thus, serious drug‐induced cardiomyopathy was avoided in patients who did not relapse. The PTM was superior to echocardiography for early, noninvasive detection and intermediate‐term monitoring of left ventricle systolic function associated with anthracycline chemotherapy, among patients with hematologic malignancies. The PTM was an effective laboratory procedure to avoid the progression to serious cardiomyopathy.

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Section: Discussionmentioning

confidence: 99%

Section: Original Researchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Noninvasive early detection of anthracycline‐induced cardiotoxicity in patients with hematologic malignancies using the phased tracking method

et al. 2016

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“…7 To date, most research examining the effect of the in utero environment on vascular health have been based on animal studies 8 and human growth restricted fetuses. 9,10 Additionally, diabetes 11 and high glucose levels 12 are associated with arterial mechanical properties such as elasticity. 13,14 Arterial elasticity has increasingly become a focal point in the past decade due to its association with CVD.…”

Section: Introductionmentioning

confidence: 99%

Assessing vascular characteristics of the fetal descending aorta: A feasibility study

Evanoff

Dengel

Narasimhan

2020

J of Clinical Ultrasound

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Research describing fetal arterial structure and function is lacking within the literature. This study's purpose was to measure intima‐media thickness (IMT), compliance and distensibility of 24‐ to 25‐week fetuses' abdominal aortas using conventional ultrasonography from 16 diabetic (DM) and 25 non‐diabetic mothers (NDM). We found no significant differences in fetal abdominal aorta IMT (P = .68), diameter distensibility (P = .22), or cross‐sectional distensibility (P = .23). However, both fetal abdominal aortic diameter compliance (P = .03) and cross‐sectional compliance (P = .005) were greater in DM than in NDM (P = .005). This study demonstrates that it is possible and potentially useful to measure fetal abdominal aorta biometrics and biomechanical characteristics.

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“…In a series of studies, [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] the elasticity of a local region has been obtained by the ultrasonic phased-tracking method. In these studies, the displacement and change in the thickness of the arterial wall caused by the heartbeat have been measured.…”

Section: Introductionmentioning

confidence: 99%

Accuracy improvement in measurement of arterial wall elasticity by applying pulse inversion to phased-tracking method

Miyachi

Arakawa²,

Kanai

2018

Jpn. J. Appl. Phys.

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In our studies on ultrasonic elasticity assessment, minute change in the thickness of the arterial wall was measured by the phased-tracking method. However, most images in carotid artery examinations contain multiple-reflection noise, making it difficult to evaluate arterial wall elasticity precisely. In the present study, a modified phased-tracking method using the pulse inversion method was examined to reduce the influence of the multiple-reflection noise. Moreover, aliasing in the harmonic components was corrected by the fundamental components. The conventional and proposed methods were applied to a pulsated tube phantom mimicking the arterial wall. For the conventional method, the elasticity was 298 kPa without multiple-reflection noise and 353 kPa with multiple-reflection noise on the posterior wall. That of the proposed method was 302 kPa without multiple-reflection noise and 297 kPa with multiple-reflection noise on the posterior wall. Therefore, the proposed method was very robust against multiple-reflection noise.

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Measurement of Internal Diameter Changes and Pulse Wave Velocity in Fetal Descending Aorta Using the Ultrasonic Phased-Tracking Method in Normal and Growth-Restricted Fetuses

Cited by 19 publications

References 32 publications

Noninvasive early detection of anthracycline‐induced cardiotoxicity in patients with hematologic malignancies using the phased tracking method

Noninvasive early detection of anthracycline‐induced cardiotoxicity in patients with hematologic malignancies using the phased tracking method

Assessing vascular characteristics of the fetal descending aorta: A feasibility study

Accuracy improvement in measurement of arterial wall elasticity by applying pulse inversion to phased-tracking method

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