M Ying

Summary

Affiliation: The Hong Kong Polytechnic University
Country: China

Publications

  1. doi request reprint A semi-quantitative approach to compare high-sensitivity power Doppler sonography and conventional power Doppler sonography in the assessment of thyroid vascularity
    Michael Ying
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China
    Thyroid 19:1265-9. 2009
  2. ncbi request reprint Comparison of sonographic appearance of normal and postradiotherapy parotid glands: a preliminary study
    Michael Ying
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Ultrasound Med Biol 33:1244-50. 2007
  3. doi request reprint Three-dimensional elastography for cervical lymph node volume measurements: a study to investigate feasibility, accuracy and reliability
    Michael Ying
    Department of Health Technology and Informatics, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
    Ultrasound Med Biol 39:396-406. 2013
  4. doi request reprint Three-dimensional ultrasound measurement of cervical lymph node volume
    M Ying
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Br J Radiol 82:617-25. 2009
  5. ncbi request reprint Reliability of 3-D ultrasound measurements of cervical lymph node volume
    Michael Ying
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Ultrasound Med Biol 32:995-1001. 2006
  6. ncbi request reprint Two-dimensional ultrasound measurement of thyroid gland volume: a new equation with higher correlation with 3-D ultrasound measurement
    Michael Ying
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Ultrasound Med Biol 34:56-63. 2008
  7. doi request reprint Asymmetry of thyroid lobe volume in normal Chinese subjects: association with handedness and position of esophagus
    Michael Ying
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Anat Rec (Hoboken) 292:169-74. 2009
  8. ncbi request reprint Nodal shape (S/L) and its combination with size for assessment of cervical lymphadenopathy: which cut-off should be used?
    M Ying
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, China
    Ultrasound Med Biol 25:1169-75. 1999
  9. ncbi request reprint Distribution of intranodal vessels in differentiating benign from metastatic neck nodes
    A T Ahuja
    Department of Diagnostic Radiology and Organ Imaging, The Hong Kong Polytechnic University, Shatin, N T, Hong Kong
    Clin Radiol 56:197-201. 2001
  10. ncbi request reprint Vascularity and grey-scale sonographic features of normal cervical lymph nodes: variations with nodal size
    M Ying
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
    Clin Radiol 56:416-9. 2001

Collaborators

Detail Information

Publications33

  1. doi request reprint A semi-quantitative approach to compare high-sensitivity power Doppler sonography and conventional power Doppler sonography in the assessment of thyroid vascularity
    Michael Ying
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China
    Thyroid 19:1265-9. 2009
    ....
  2. ncbi request reprint Comparison of sonographic appearance of normal and postradiotherapy parotid glands: a preliminary study
    Michael Ying
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Ultrasound Med Biol 33:1244-50. 2007
    ..In conclusion, ultrasound is useful in assessing parotid glands. To avoid image misinterpretation, post-RT changes in the sonographic appearance of parotid glands should be considered in examining patients with previous head and neck RT...
  3. doi request reprint Three-dimensional elastography for cervical lymph node volume measurements: a study to investigate feasibility, accuracy and reliability
    Michael Ying
    Department of Health Technology and Informatics, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
    Ultrasound Med Biol 39:396-406. 2013
    ..2%, 0.777 and 0.863-0.906 respectively). As a conclusion, 3-D elastography is accurate and reliable in volume measurement of ill-defined lymph nodes and has potential for accurate assessment of lymph node volume...
  4. doi request reprint Three-dimensional ultrasound measurement of cervical lymph node volume
    M Ying
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Br J Radiol 82:617-25. 2009
    ..This study provides baseline information on the normal variations of cervical lymph node volume, as measured by 3-D ultrasound...
  5. ncbi request reprint Reliability of 3-D ultrasound measurements of cervical lymph node volume
    Michael Ying
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Ultrasound Med Biol 32:995-1001. 2006
    ..However, further studies to improve the reproducibility of 3-D ultrasound measurements of submental, submandibular and upper cervical node volume are suggested...
  6. ncbi request reprint Two-dimensional ultrasound measurement of thyroid gland volume: a new equation with higher correlation with 3-D ultrasound measurement
    Michael Ying
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Ultrasound Med Biol 34:56-63. 2008
    ..05). With the use of the appropriate thyroid volume equation, 2-D ultrasound can be a useful alternative in thyroid volume measurement when 3-D ultrasound is not available...
  7. doi request reprint Asymmetry of thyroid lobe volume in normal Chinese subjects: association with handedness and position of esophagus
    Michael Ying
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Anat Rec (Hoboken) 292:169-74. 2009
    ..76 mL; centrally located: mean, 5.19 mL) (P > 0.05). Thyroid asymmetry is associated with the handedness of subjects and the position of the esophagus...
  8. ncbi request reprint Nodal shape (S/L) and its combination with size for assessment of cervical lymphadenopathy: which cut-off should be used?
    M Ying
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, China
    Ultrasound Med Biol 25:1169-75. 1999
    ..4), middle cervical (0.3) and posterior triangle (0.4). In the submandibular and parotid regions, the combination of the S/L ratio and short axis shows substantial improvement in diagnostic accuracy when compared to the S/L ratio alone...
  9. ncbi request reprint Distribution of intranodal vessels in differentiating benign from metastatic neck nodes
    A T Ahuja
    Department of Diagnostic Radiology and Organ Imaging, The Hong Kong Polytechnic University, Shatin, N T, Hong Kong
    Clin Radiol 56:197-201. 2001
    ..This study was undertaken to identify which of the parameters used in Doppler sonography of cervical lymph nodes is accurate and readily applicable in routine clinical practice...
  10. ncbi request reprint Vascularity and grey-scale sonographic features of normal cervical lymph nodes: variations with nodal size
    M Ying
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
    Clin Radiol 56:416-9. 2001
    ..This study was undertaken to investigate variations in the vascularity and grey-scale sonographic features of cervical lymph nodes with their size...
  11. ncbi request reprint Power Doppler sonography to differentiate tuberculous cervical lymphadenopathy from nasopharyngeal carcinoma
    A Ahuja
    Department of Diagnostic Radiology and Organ Imaging, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China
    AJNR Am J Neuroradiol 22:735-40. 2001
    ..However, there is overlap of appearance between tuberculous nodes, benign reactive neck nodes, and metastatic nodes. Thus, histologic analysis is often required for a definitive diagnosis...
  12. ncbi request reprint Evaluation of cervical lymph node vascularity: a comparison of colour Doppler, power Doppler and 3-D power Doppler sonography
    Anil T Ahuja
    Department of Diagnostic Radiology and Organ Imaging, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong, China
    Ultrasound Med Biol 30:1557-64. 2004
    ..However, accurate assessment of the vascular pattern of cervical nodes may be difficult using 3-D PDS. In the assessment of displacement of hilar vascularity, the performances of CDS, PDS and 3-D PDS are similar...
  13. ncbi request reprint Gray scale and power Doppler sonography of normal cervical lymph nodes: comparison between Chinese and white subjects
    Michael Ying
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Kowloon, China
    J Ultrasound Med 21:59-65. 2002
    ..To investigate the racial difference in gray scale and power Doppler sonography of cervical lymph nodes between white and Chinese subjects...
  14. pmc Ultrasound of malignant cervical lymph nodes
    A T Ahuja
    Department of Diagnostic Radiology and Organ Imaging, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR, China
    Cancer Imaging 8:48-56. 2008
    ..Power Doppler sonography evaluates the vascular pattern of nodes and helps to identify the malignant nodes. In addition, serial monitoring of nodal size and vascularity are useful features in the assessment of treatment response...
  15. ncbi request reprint Sonography of neck lymph nodes. Part II: abnormal lymph nodes
    A Ahuja
    Department of Diagnostic Radiology and Organ Imaging, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Prince of Wales Hospital, Shatin, New Territories, SAR, Hong Kong, People s Republic of China
    Clin Radiol 58:359-66. 2003
    ..The useful Doppler features are: distribution of vascularity and intranodal resistance. Ancillary features such as oedema of soft tissue and nodal matting are particularly helpful to identify tuberculous nodes...
  16. doi request reprint Evaluation of the accuracy and reliability of two 3-dimensional sonography methods in volume measurement of small structures: an in vitro phantom study
    Brian C W Kot
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hunghom, Kowloon, Hong Kong SAR, China
    J Clin Ultrasound 37:82-8. 2009
    ..To evaluate the accuracy and reliability of two 3-dimensional (3D) ultrasound imaging and measurement techniques in volume measurements using custom-made phantoms...
  17. ncbi request reprint Repeatability of power Doppler sonography of cervical lymph nodes
    Michael Ying
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
    Ultrasound Med Biol 28:737-44. 2002
    ..Results suggest that power Doppler sonography is a reliable method in assessment of the vasculature of cervical lymph nodes...
  18. ncbi request reprint Accuracy of sonographic vascular features in differentiating different causes of cervical lymphadenopathy
    Michael Ying
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
    Ultrasound Med Biol 30:441-7. 2004
    ..5) and metastases (PI > 1.5), with an accuracy of 77% in both diseases. When appropriate criteria are used, power Doppler sonography is a valuable adjunct in the sonographic evaluation of cervical lymphadenopathy...
  19. ncbi request reprint Comparison of extended field of view and dual image ultrasound techniques: accuracy and reliability of distance measurements in phantom study
    Michael Ying
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
    Ultrasound Med Biol 31:79-83. 2005
    ..6 to 97.9%). EFOV US has a higher accuracy and reliability than dual image US in distance measurements. However, the dual image US is a useful alternative with a high accuracy and reliability when EFOV US is not available...
  20. ncbi request reprint Sonographic evaluation of the size of Achilles tendon: the effect of exercise and dominance of the ankle
    Michael Ying
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Ultrasound Med Biol 29:637-42. 2003
    ..Results suggested that exercise would cause increase in the thickness and cross-sectional area of Achilles tendon. Interobserver variability is not significant in the sonographic measurement of Achilles tendons...
  21. ncbi request reprint Grey-scale and power Doppler sonography of unusual cervical lymphadenopathy
    Michael Ying
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
    Ultrasound Med Biol 30:449-54. 2004
    ..Definitive diagnosis should still be based on cytology and histology, and US can help in guiding FNAC for a more accurate cytologic examination...
  22. pmc Correlation between computerised findings and Newman's scaling on vascularity using power Doppler ultrasonography imaging and its predictive value in patients with plantar fasciitis
    H Chen
    Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong
    Br J Radiol 85:925-9. 2012
    ....
  23. ncbi request reprint Three-dimensional ultrasound volumetric measurements: is the largest number of image planes necessary for outlining the region-of-interest?
    Beatrice S F Pang
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Ultrasound Med Biol 32:1193-202. 2006
    ..Therefore, in 3D-US volumetric measurements, the largest number of image planes may not be necessary for outlining the region-of-interest...
  24. ncbi request reprint Three-dimensional ultrasound measurement of thyroid volume in asymptomatic male Chinese
    Edmond Ng
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
    Ultrasound Med Biol 30:1427-33. 2004
    ..81 to 17.25 mL (mean 12.78 +/- SD 2.483), and there was no significant difference in thyroid volume between subjects of different age groups (p > 0.05). 3-D US is an accurate and reliable method by which to measure thyroid volume...
  25. ncbi request reprint Sonographic evaluation of cervical lymph nodes
    Anil T Ahuja
    Department of Diagnostic Radiology and Organ Imaging, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China
    AJR Am J Roentgenol 184:1691-9. 2005
    ..Gray-scale sonography and color and power Doppler sonography are commonly used in clinical practice. This article documents the common sonographic appearances of different causes of cervical lymphadenopathy...
  26. pmc Review of ultrasonography of malignant neck nodes: greyscale, Doppler, contrast enhancement and elastography
    M Ying
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
    Cancer Imaging 13:658-69. 2013
    ..This article reviews the value of greyscale, Doppler and contrast-enhanced ultrasonography as well as elastography in the assessment of malignant nodes in the neck. ..
  27. ncbi request reprint Sonography of neck lymph nodes. Part I: normal lymph nodes
    M Ying
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, SAR, Hong Kong, People s Republic of China
    Clin Radiol 58:351-8. 2003
    ..This article reviews these topics in order to provide a baseline for sonographic examination of cervical lymphadenopathy...
  28. ncbi request reprint Sonographic appearances of cervical lymph nodes: variations by age and sex
    Michael Ying
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Yuk Choi Road, Hung Hom, Kowloon, Hong Kong SAR, China
    J Clin Ultrasound 30:1-11. 2002
    ..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...
  29. ncbi request reprint Sonographic measurement of achilles tendons in asymptomatic subjects: variation with age, body height, and dominance of ankle
    Beatrice S F Pang
    Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
    J Ultrasound Med 25:1291-6. 2006
    ..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...
  30. ncbi request reprint The reproducibility and short-term and long-term repeatability of sonographic measurement of splenic length
    Pui Shan Li
    Department of Optometry and Radiography, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, People s Republic of China
    Ultrasound Med Biol 30:861-6. 2004
    ..Measurement errors should be considered when evaluating the changes of splenic length in serial US examinations, particularly in long-term follow-up...
  31. ncbi request reprint Sonographic evaluation of cervical lymphadenopathy: is power Doppler sonography routinely indicated?
    Anil Ahuja
    Department of Diagnostic Radiology and Organ Imaging, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
    Ultrasound Med Biol 29:353-9. 2003
    ..In this study, power Doppler sonography aided in the diagnosis in 5% and 17% of patients with metastatic and nonmetastatic nodes, respectively...
  32. ncbi request reprint An overview of neck node sonography
    Anil Ahuja
    Department of Diagnostic Radiology and Organ Imaging, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong
    Invest Radiol 37:333-42. 2002
    ..This study was undertaken to identify which of the features used in ultrasound of cervical lymph nodes is readily applicable in routine clinical practice...
  33. doi request reprint Doppler ultrasound of mediastinal lymph nodes
    Michael Ying
    J Thorac Oncol 3:325-6. 2008