Evaluation of Hand Tendon Movement by Using High-Frequency Ultrasound Vector Doppler Imaging

Wang, Min-Yuan; Yang, Tai-Hua; Huang, Hsien‐Cheng; Hsu, Hsiu‐Yun; Kuo, Li-Chieh; Su, Fong-Chin; Huang, Chun‐Chia

doi:10.1109/tbme.2020.2974244

Cited by 14 publications

(7 citation statements)

References 27 publications

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“…Ultrasound scoring can also be used to assess the ventilation function and oxygenation status of the adult lung. Compared with adults, neonates have less adipose tissue, small lung volume, and thin muscle layer, which are more conducive to the diagnosis of neonatal lung diseases by lung ultrasound [ 8 ].…”

Section: Literature Reviewmentioning

confidence: 99%

[Retracted] Clinical Value and Imaging Features of Bedside High‐Frequency Ultrasound Imaging in the Diagnosis of Neonatal Pneumonia

Zhu¹,

Chen²,

Jiang³

2022

Contrast Media & Molecular Imaging

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The aim is to solve the problem of the urgent need of a nonradiation, noninvasive, and simple-to-operate diagnostic method for neonatal pneumonia that can indicate the severity of the disease and dynamically monitor the outcome of the disease. The authors propose a bedside high-frequency ultrasound technique based on methods for evaluation in the detection and treatment of neonatal pneumonia. The results obtained are as follows: the sensitivity of neonatal lung ultrasound in the diagnosis of neonatal pneumonia was 96.6%, the specificity was 93.3%, the positive predictive value was 93.5%, and the negative predictive value was 96.5%. The sensitivity of chest X-ray in the diagnosis of neonatal pneumonia was 93.3%. Compared with the lung ultrasound and chest X-ray in the diagnosis of neonatal pneumonia, the two had a good correlation. The neonatal respiratory score was positively correlated with the lung ultrasound score, and the higher the lung ultrasound score, the more severe the disease. The score decreased by 35% after 3 days of treatment and 68% after 7 days of treatment, indicating that the lung high-frequency ultrasound score can be very effective in characterizing the treatment situation. It has been demonstrated that the lung ultrasound can be used as an imaging method for the diagnosis of neonatal pneumonia. The higher the lung ultrasound score, the more severe the disease, and the lung ultrasound score was positively correlated with the disease severity. With dynamic monitoring of the lung ultrasound and the gradual improvement of clinical symptoms after treatment, the lung ultrasound score gradually decreased; therefore, the lung ultrasound can be used for re-examination of neonatal pneumonia to evaluate the treatment effect and guidance.

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Section: Literature Reviewmentioning

confidence: 99%

[Retracted] Clinical Value and Imaging Features of Bedside High‐Frequency Ultrasound Imaging in the Diagnosis of Neonatal Pneumonia

Zhu¹,

Chen²,

Jiang³

2022

Contrast Media & Molecular Imaging

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“…The cure rate was 95.6%, and the recurrence rate was 4.4%. In the clinical group, there were 40 lesions, 31 were cured and 9 recurred [ 3 ]. The cure rate was 77.5%, and the recurrence rate was 22.5%.…”

Section: Experimental Analysismentioning

confidence: 99%

“…Combined with color Doppler ultrasound, important information such as blood flow distribution and blood flow velocity of thyroid parenchyma and lesions can be observed. Because the conventional ultrasound manifestations of focal thyroiditis and thyroid micropapillary carcinoma are very similar and the diagnosis is difficult, this paper reviews the color Doppler ultrasound manifestations of 90 patients with subacute thyroiditis, in order to further explore the value of color Doppler ultrasound in the diagnosis and differential diagnosis of subacute thyroiditis [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Diagnostic Value of Color Doppler Ultrasonography in Subacute Thyroiditis

et al. 2022

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In order to explore the clinical effect of color Doppler ultrasonography in the diagnosis of subacute thyroiditis, a method for the diagnosis of subacute thyroiditis by color Doppler ultrasonography was proposed. From November 2019 to November 2020, 90 patients with subacute thyroiditis in our hospital were selected as the experimental group; 90 healthy people were selected as the control group during the same period. Both groups were diagnosed by color Doppler ultrasonography and compared. The experimental results showed that patients with subacute thyroiditis showed mild to moderate enlargement of the involved thyroid gland, and local or diffuse inhomogeneous hypoechoic areas may appear in bilateral or unilateral thyroid glands: irregular edges, unclear boundaries, no "ball feel," mottled changes, and accompanied by tenderness. The blood flow signal around the hypoechoic area is rich, and the internal blood flow signal is less. There was no significant increase in the blood flow velocity of the superior thyroid artery on the affected side. Color Doppler ultrasound not only is simple, economical, and non-invasive but also has a good diagnostic accuracy for subacute thyroiditis, which can provide an important basis for clinical diagnosis and treatment and is worthy of popularization and application.

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“…However, microbubble injection is needed during measurements. Besides the speckle tracking approach, VDI based on multiangle Doppler calculation, has been proposed for angle‐independent velocity measurements 28,32–34 . Goudot et al.…”

Section: Introductionmentioning

confidence: 99%

“…Besides the speckle tracking approach, VDI based on multiangle Doppler calculation, has been proposed for angleindependent velocity measurements. 28,[32][33][34] Goudot et al used VDI to measure the blood flow for assessing WSS on human carotid artery. 35,36 But their papers did not mention too many details about flow estimation, only described that the vector flow estimation was performed in the beam-formed images by analyzing the Doppler signal.…”

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confidence: 99%

Wall shear stress mapping for human femoral artery based on ultrafast ultrasound vector Doppler estimations

et al. 2021

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Purpose: Wall shear stress (WSS), a type of friction exerted on the artery wall by flowing blood,is considered a crucial factor in atherosclerotic plaque development. Currently, achieving a reliable WSS mapping of an artery noninvasively by using existing imaging modalities is still challenging. In this study, a WSS mapping based on vector Doppler flow velocity estimation was proposed to measure the dynamic WSS on the human femoral artery. Methods: Because ultrafast ultrasound imaging was used here, flow-enhanced imaging was also performed to observe the moving blood flow condition. The performance of WSS mapping was verified using both straight (8 mm in diameter) and stenosis (70% of stenosis) phantoms under a pulsatile flow condition. A human study was conducted from five healthy volunteers. Results: Experimental results demonstrated that the WSS estimation was close to the standard value that was obtained from maximum velocity estimation in straight phantom experiments. In a stenosis phantom experiment, a low WSS region was observed at a site downstream of an obstruction, which is a high-risk area for plaque formation. Dynamic WSS mapping was accomplished in measurement in the femoral artery bifurcation. In measurements, the time-averaged WSS of the common femoral artery, superficial femoral artery, and deep femoral artery was 0.52± 0.19,0.44 ± 0.21,and 0.29 ± 0.16 Pa,respectively,for the anterior wall and 0.29 ± 0.11, 0.54 ± 0.24, and 0.23 ± 0.10 Pa, respectively, for the posterior wall. Conclusions: All results indicated that WSS mapping has the potential to be a useful tool for vessel duplex scanning in the future. K E Y W O R D Speripheral artery disease,ultrasound blood flow,ultrafast ultrasound imaging,vector doppler velocity, wall shear stress mapping INTRODUCTIONPeripheral artery disease (PAD) refers to a major systemic vascular disease, involving many symptoms that affect noncardiac and nonintracranial arteries. 1 The common causes of PAD are atherosclerosis and inflammatory disorders of the arterial wall, which lead to changes in the structure and function of arteries, especially in the lower limbs. 2 In the end stage of PAD, symptoms progress to ischemic ulcers and gangrene, and amputation is eventually required. 3,4 The femoral artery is one of the most common sites of lower limb atherosclerosis in PAD. 5,6 Several studies have indicated that atherosclerosis not only causes PAD and femoral artery stenosis but is also related to other arterial-affecting diseases, such as cardiovascular disease, 7,8 chronic kidney disease, 9,10 and femoral artery aneurysm. 11 Many studies have suggested that shear stress is a key factor in the development of vascular disease and atherosclerosis. 12 Shear stress is described as friction induced by the different movements of two flowing layers in a fluid. In hemodynamics, wall shear stress (WSS) is expressed as the tangential force exerted on the

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Evaluation of Hand Tendon Movement by Using High-Frequency Ultrasound Vector Doppler Imaging

Cited by 14 publications

References 27 publications

[Retracted] Clinical Value and Imaging Features of Bedside High‐Frequency Ultrasound Imaging in the Diagnosis of Neonatal Pneumonia

[Retracted] Clinical Value and Imaging Features of Bedside High‐Frequency Ultrasound Imaging in the Diagnosis of Neonatal Pneumonia

Diagnostic Value of Color Doppler Ultrasonography in Subacute Thyroiditis

Wall shear stress mapping for human femoral artery based on ultrafast ultrasound vector Doppler estimations

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