• Disease
  • Doppler
  • Doppler Sonography
  • Michael T C Ying

    Prominent publications by Michael T C Ying

    KOL Index score: 14303

    OBJECTIVES: To establish the test-retest reliability of ultrasound measurements on acromio-humeral distance (AHD) and supraspinatus tendon thickness; and to explore their relationships with shoulder rotational strengths.

    DESIGN: Test-retest observational study.

    METHODS: Thirty-seven individuals (age: 21.5±1.4 years) participated in this study. Twenty-four were University volleyball players with 15 healthy and 9 players with shoulder impingement syndrome (SIS). Thirteen participants were ...

    Also Ranks for: Ultrasound Measurements |  supraspinatus tendon |  ahd thickness |  humeral distance |  individuals sis
    KOL Index score: 13146

    This study was undertaken to measure and compare the thickness and cross-sectional area of the Achilles tendon between frequent- and infrequent-exercise subjects, and between the dominant and nondominant ankles in an asymptomatic Chinese population. Interobserver variability in the measurement of the size of Achilles tendon was also evaluated. High-resolution ultrasound (US) examination of Achilles tendons was performed in 40 healthy subjects (20 who frequently exercised, had exercise at ...

    Also Ranks for: Achilles Tendon |  sonographic evaluation |  crosssectional area |  thickness cross |  dominant ankle
    KOL Index score: 12154

    OBJECTIVES: This study aimed to assess the feasibility of using quantitative shear wave elastography (SWE) to assess the stiffness (Young's modulus) of Achilles tendon and to investigate the effect of long-term weight-bearing exercise on the stiffness of human Achilles tendon by comparing the frequent and infrequent exercise groups.

    DESIGN: Case-control study.

    METHODS: A total of 36 healthy subjects aged 19-25 were recruited. Subjects were categorized into frequent and infrequent ...

    Also Ranks for: Achilles Tendon |  shear wave elastography |  sonographic evaluation |  exercise stiffness |  adult ankle
    KOL Index score: 11573

    Doxorubicin is an effective chemotherapeutic agent used to treat malignancies, but it causes cardiomyopathy. Preliminary evidence suggests that desacyl ghrelin might have protective effects on doxorubicin cardiotoxicity. This study examined the cellular effects of desacyl ghrelin on myocardial fibrosis and apoptosis in a doxorubicin cardiomyopathy experimental model. Adult C57BL/6 mice received an intraperitoneal injection of doxorubicin to induce cardiomyopathy, followed by 4-day ...

    Also Ranks for: Desacyl Ghrelin |  myocardial fibrosis |  lys3ghrp6 doxorubicin |  cardiac dysfunction |  protective effects
    KOL Index score: 10919

    KEY POINTS: Doxorubicin induced functional deteriorations and elevations of USP7-related apoptotic/catabolic signalling in the senescent heart Resveratrol protects against doxorubicin-induced alterations through the restoration of SIRT1 deacetylase activity

    ABSTRACT: A compromised cardiac function is often seen in elderly cancer patients receiving doxorubicin therapy. The present study tested the hypothesis that acute intervention with resveratrol, a natural anti-oxidant found in grapes ...

    Also Ranks for: Induced Cardiotoxicity |  sirt1 activity |  sirtuin 1 |  ubiquitin specific |  mice myocytes
    KOL Index score: 10665

    AIMS: This study was undertaken to investigate the immediate effect of static stretching on normal Achilles tendon morphology and stiffness, and the different effect on dominant and non-dominant legs; and to evaluate inter-operator and intra-operator reliability of using shear-wave elastography in measuring Achilles tendon stiffness.

    METHODS: 20 healthy subjects (13 males, 7 females) were included in the study. Thickness, cross-sectional area and stiffness of Achilles tendons in both ...

    Also Ranks for: Achilles Tendon |  static stretching |  dominant leg |  shear wave |  operator reliability
    KOL Index score: 10620

    PURPOSE: The purpose of this study was to evaluate the age- and sex-related variations in the numbers and sonographic appearances of normal cervical lymph nodes.

    METHODS: One hundred thirty-three healthy subjects (67 men and 66 women) underwent sonographic examinations of the neck, during which 1,299 lymph nodes were detected. The lymph nodes were assessed for their size, shape (short-to-long-axis ratio), and border sharpness, as well as for the presence of an echogenic hilum. The ...

    Also Ranks for: Lymph Nodes |  sonographic appearances |  aged neck |  normal cervical |  echogenic hilum
    KOL Index score: 10587

    OBJECTIVE: This study was undertaken to evaluate the thickness, cross-sectional area, and length of Achilles tendons in asymptomatic subjects of different age groups and heights and between dominant and nondominant ankles.

    METHODS: High-resolution sonographic examinations of Achilles tendons were performed in 40 healthy subjects (14 men and 26 women). The subjects were categorized into 4 age groups: (1) 20 to 29 years, (2) 30 to 39 years, (3) 40 to 49 years, and (4) 50 years or older. ...

    Also Ranks for: Achilles Tendons |  length thickness |  sonographic measurement |  crosssectional area |  tendon cross
    KOL Index score: 10192

    Routine sonographic examination of neck nodes now includes both grey-scale and Doppler sonography. Although the addition of Doppler sonography to the well-established practice of grey-scale sonography increases the amount of information obtained by sonography, it also increases the examination time, particularly if spectral Doppler and estimation of vascular resistance is performed. This study was, therefore, undertaken to evaluate whether Doppler sonography is routinely indicated in ...

    Also Ranks for: Doppler Sonography |  cervical lymphadenopathy |  sonographic evaluation |  sensitivity specificity |  lymph nodes
    KOL Index score: 9831

    Elevations of cardiomyocyte apoptosis and fibrotic deposition are major characteristics of the ageing heart. Resveratrol, a polyphenol in grapes and red wine, is known to improve insulin resistance and increase mitochondrial biogenesis through the SIRT1-PGC-1α signalling axis. Recent studies attempted to relate SIRT1 activation by resveratrol to the regulation of apoptosis in various disease models of cardiac muscle. In the present study, we tested the hypothesis that long-term (8-month) ...

    Also Ranks for: Sirt1 Activation |  apoptotic signalling |  senescent heart |  aged mice |  cardiac function
    KOL Index score: 9527

    AIMS. The aim of this study is to determine the extent of carotid atherosclerosis in Chinese patients with type 2 diabetes in relation to the cumulative atherosclerosis risk factors using ultrasonography. METHODS. The presence of hypertension, dyslipidemia, and chronic kidney disease (CKD) was documented in 106 Chinese subjects with type 2 diabetes. Subjects with 0, 1, and ≥2 additional atherosclerosis risk factors were assigned into groups 1, 2, and 3, respectively (n = 17, 49, and 40, ...

    Also Ranks for: Carotid Atherosclerosis |  type 2 diabetes |  chronic kidney disease |  chinese patients |  arterial stiffness
    KOL Index score: 8839

    BACKGROUND AND PURPOSE: Tuberculous lymphadenitis and metastatic nodes from nasopharyngeal carcinoma are common in Asians and are often indistinguishable clinically. Because their treatment depends on prompt diagnosis, we undertook this study to evaluate if power Doppler sonography could distinguish these two pathologic abnormalities. The intranodal vascular appearances of tuberculous neck nodes are compared with benign reactive neck nodes and metastatic nodes from nasopharyngeal ...

    Also Ranks for: Doppler Sonography |  tuberculous nodes |  nasopharyngeal carcinoma |  vascular resistance |  cervical lymphadenopathy
    KOL Index score: 8729

    This study was undertaken to investigate and compare the accuracy and reliability of dual image and extended field-of-view (EFOV) ultrasound (US) techniques in distance measurements using acoustic phantoms. Ten tissue phantoms were constructed and were scanned twice with an interval of 3 days by two operators. Measurements of various known distance (ranging from 4.6 to 7.2 cm) in the phantoms were made with dual image and EFOV US. Results showed that both dual image and EFOV US have a ...

    Also Ranks for: Dual Image |  extended field |  accuracy reliability |  imaging reproducibility |  phantom study
    KOL Index score: 8371

    This study aimed to develop a new two-dimensional (2-D) ultrasound thyroid volume estimation equation using three-dimensional (3-D) ultrasound as the standard of reference, and to compare the thyroid volume estimation accuracy of the new equation with three previously reported equations. 2-D and 3-D ultrasound examinations of the thyroid gland were performed in 150 subjects with normal serum thyrotropin (TSH, thyroid-stimulating hormone) and free thyroxine (fT4) levels (63 men and 87 ...

    Also Ranks for: Thyroid Volume |  dimensional ultrasound |  computerassisted imaging |  2 3 |  interpretation computer
    KOL Index score: 8281

    This study was undertaken to evaluate the accuracy of the power Doppler sonographic features in differentiating cervical lymphadenopathy in different diseases. We reviewed power Doppler sonograms of 270 patients with palpable neck nodes (metastases n = 101, lymphoma n = 21, tuberculosis n = 76, reactive n = 72). Confirmed diagnosis was either made by fine-needle aspiration cytology on the largest node or by excision biopsy. In each patient, the largest node was included in the study. The ...

    Also Ranks for: Cervical Lymphadenopathy |  vascular pattern |  differential diagnosis |  neck nodes |  lymph node ultrasonography


    Michael T C Ying: Influence Statistics

    Sample of concepts for which Michael T C Ying is among the top experts in the world.
    Concept World rank
    irregularshaped tissue #1
    achilles tendons subjects #1
    static stretching stiffness #1
    reliability efov #1
    lobe volume subjects #1
    90 2d ultrasound #1
    frequentexercisers #1
    correlation computerised findings #1
    centrally located esophagus #1
    accuracy volumetric measurements #1
    dominant ankles #1
    node volume #1
    vascularity thickness #1
    planes outlining #1
    thyroid size asymmetry #1
    voluntary trained behaviour #1
    homedeveloped algorithm #1
    volume estrous #1
    pcor005 #1
    achilles static stretching #1
    supraspinatus tendinopathy vascularization #1
    lower vascular velocity #1
    pixels doppler sonograms #1
    pds thyroid glands #1
    cervical node volume #1
    dominant ankles p05 #1
    life imaging head #1
    testis size dolphins #1
    pcor0001 cutoff values #1
    assessment gsu #1
    thyroid lobe #1
    resting subacromial space #1
    mechanical sonography #1
    stiffness achilles #1
    tendon dominant #1
    evaluated grey #1
    thyroid volume variability #1
    nondominant ankle frequentexercisers #1
    96 thyroid #1
    relaxed neutral position #1
    pathologic sensitivity doppler #1
    thyroid gland operators #1
    volumetric measurements numbers #1

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    Michael T C Ying:Expert Impact

    Concepts for whichMichael T C Yinghas direct influence:Doppler sonography,  Carotid atherosclerosis,  Lymph nodes,  Metastatic nodes,  Nasopharyngeal carcinoma,  Achilles tendon,  Desacyl ghrelin,  Ultrasound measurements.

    Michael T C Ying:KOL impact

    Concepts related to the work of other authors for whichfor which Michael T C Ying has influence:Lymph nodes,  Achilles tendon,  Thyroid nodules,  Nasopharyngeal carcinoma,  Sensitivity specificity,  Salivary glands,  Differential diagnosis.



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    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, SAR, China. | Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, Ch