Nicholas J Hangiandreou

Summary

Affiliation: Mayo Clinic
Country: USA

Publications

  1. ncbi An evaluation of the signal and noise characteristics of four CCD-based film digitizers
    N J Hangiandreou
    Department of Diagnostic Radiology, Mayo Clinic and Foundation, Rochester, Minnesota 55905, USA
    Med Phys 25:2020-6. 1998
  2. ncbi Four-year experience with a clinical ultrasound quality control program
    Nicholas J Hangiandreou
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    Ultrasound Med Biol 37:1350-7. 2011
  3. ncbi State-of-the-art ultrasound imaging technology
    Nicholas J Hangiandreou
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    J Am Coll Radiol 1:691-3. 2004
  4. ncbi AAPM/RSNA physics tutorial for residents. Topics in US: B-mode US: basic concepts and new technology
    Nicholas J Hangiandreou
    Department of Radiology, East 2, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
    Radiographics 23:1019-33. 2003
  5. ncbi The effects of irreversible JPEG compression on an automated algorithm for measuring carotid artery intima-media thickness from ultrasound images
    N J Hangiandreou
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    J Digit Imaging 15:258-60. 2002
  6. ncbi An investigation of the effects of mammographic acquisition parameters on a semiautomated quantitative measure of breast cancer risk
    N J Hangiandreou
    Department of Diagnostic Radiology, Mayo Clinic and Foundation, Rochester, MN 55905, USA
    J Digit Imaging 13:186-8. 2000
  7. ncbi The utility of pelvic coil SNR testing in the quality assurance of a clinical MRgFUS system
    Krzysztof R Gorny
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    Phys Med Biol 54:N83-91. 2009
  8. ncbi Differentiating benign from malignant solid breast masses with US strain imaging
    Elizabeth S Burnside
    Department of Radiology, University of Wisconsin Medical School, E3 311 Clinical Science Center, Madison, WI 53792 3252, USA
    Radiology 245:401-10. 2007
  9. ncbi Magnetic resonance-guided focused ultrasound of uterine leiomyomas: review of a 12-month outcome of 130 clinical patients
    Krzysztof R Gorny
    Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
    J Vasc Interv Radiol 22:857-64. 2011
  10. ncbi Evaluation of a low-cost liquid ultrasound test object for detection of transducer artefacts
    Deirdre M King
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    Phys Med Biol 55:N557-70. 2010

Detail Information

Publications16

  1. ncbi An evaluation of the signal and noise characteristics of four CCD-based film digitizers
    N J Hangiandreou
    Department of Diagnostic Radiology, Mayo Clinic and Foundation, Rochester, Minnesota 55905, USA
    Med Phys 25:2020-6. 1998
    ..g., for acceptance testing and quality control), and this technique may be adaptable for evaluation of other digital imaging modalities...
  2. ncbi Four-year experience with a clinical ultrasound quality control program
    Nicholas J Hangiandreou
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    Ultrasound Med Biol 37:1350-7. 2011
    ..For routine US QC, we recommend quarterly mechanical integrity and uniformity assessments of all transducers. A scanner with five transducers could be tested in an estimated 30 min or less...
  3. ncbi State-of-the-art ultrasound imaging technology
    Nicholas J Hangiandreou
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    J Am Coll Radiol 1:691-3. 2004
  4. ncbi AAPM/RSNA physics tutorial for residents. Topics in US: B-mode US: basic concepts and new technology
    Nicholas J Hangiandreou
    Department of Radiology, East 2, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
    Radiographics 23:1019-33. 2003
    ..Although B-mode US is sometimes referred to as a mature technology, this modality continues to experience a significant evolution in capability with even more exciting developments on the horizon...
  5. ncbi The effects of irreversible JPEG compression on an automated algorithm for measuring carotid artery intima-media thickness from ultrasound images
    N J Hangiandreou
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    J Digit Imaging 15:258-60. 2002
    ..This initial study indicates that compression at 10:1 using baseline JPEG should have little effect on IMT measurements made using the current algorithm, and that compression to 20:1 or 30:1 may be feasible...
  6. ncbi An investigation of the effects of mammographic acquisition parameters on a semiautomated quantitative measure of breast cancer risk
    N J Hangiandreou
    Department of Diagnostic Radiology, Mayo Clinic and Foundation, Rochester, MN 55905, USA
    J Digit Imaging 13:186-8. 2000
    ..All of these estimates are likely larger than differences seen in practice since optimization of the threshold by the operator was not considered in this analysis...
  7. ncbi The utility of pelvic coil SNR testing in the quality assurance of a clinical MRgFUS system
    Krzysztof R Gorny
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    Phys Med Biol 54:N83-91. 2009
    ..001; faulty, p < 0.001). Additional clinical data illustrate the utility of SNR testing of the receiver coil. These tests require minimal (or possibly no) additional scan time and have proven to be effective in our clinical practice...
  8. ncbi Differentiating benign from malignant solid breast masses with US strain imaging
    Elizabeth S Burnside
    Department of Radiology, University of Wisconsin Medical School, E3 311 Clinical Science Center, Madison, WI 53792 3252, USA
    Radiology 245:401-10. 2007
    ..To prospectively evaluate the sensitivity and specificity of ultrasonographic (US) strain imaging for distinguishing between benign and malignant solid breast masses, with biopsy results as the reference standard...
  9. ncbi Magnetic resonance-guided focused ultrasound of uterine leiomyomas: review of a 12-month outcome of 130 clinical patients
    Krzysztof R Gorny
    Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
    J Vasc Interv Radiol 22:857-64. 2011
    ..To assess 12-month outcomes and safety of clinical magnetic resonance (MR)-guided focused ultrasound (US) treatments of uterine leiomyomas...
  10. ncbi Evaluation of a low-cost liquid ultrasound test object for detection of transducer artefacts
    Deirdre M King
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    Phys Med Biol 55:N557-70. 2010
    ....
  11. ncbi Assessment of three methods for detection of ultrasound artifacts
    Deirdre M King
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    Med Phys 38:6216-21. 2011
    ..It is important to detect the presence of these non uniformities as early as possible, so they can be assessed, tracked, and addressed well before clinical image quality is impacted...
  12. ncbi Initial evaluation of acoustic reflectors for the preservation of sensitive abdominal skin areas during MRgFUS treatment
    Krzysztof R Gorny
    Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA
    Phys Med Biol 54:N125-33. 2009
    ..No heating was observed on the skin side of the foam reflectors, as confirmed by measurements performed with adhesive temperature labels. We present these data and discuss possible applications to clinical MRgFUS treatments...
  13. ncbi Evaluation of irreversible JPEG compression for a clinical ultrasound practice
    Kenneth R Persons
    Departments of Information Services and Diagnostic Radiology, Mayo Clinic and Foundation, Rochester, MN 55905, USA
    J Digit Imaging 15:15-21. 2002
    ..No image quality-related issues have been encountered after 12 months of operation (approximately 48000 examinations)...
  14. ncbi Measurement of the presampled two-dimensional modulation transfer function of digital imaging systems
    Kenneth A Fetterly
    Department of Diagnostic Radiology, Mayo Clinic, Rochester, Minnesota 55905, USA
    Med Phys 29:913-21. 2002
    ..Comparison of the axial components of the 2D MTF to one-dimensional MTF measurements acquired using an edge device method demonstrated that the two methods produced consistent results...
  15. ncbi Breast lesions: evaluation with US strain imaging--clinical experience of multiple observers
    Dawn M Regner
    Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
    Radiology 238:425-37. 2006
    ..Focusing on measurements of lesion width, along with additional observer training or automated processes, may yield a suitable method for routine clinical application...
  16. ncbi The electronic imaging technology specialist: the role of a new radiology subspecialty for the 21st century
    Brian J Bartholmai
    Department of Diagnostic Radiology, Mayo Clinic, 200 1st Street, SW, Rochester, MN 55905, USA
    J Digit Imaging 15:184-8. 2002
    ..An EIT fellowship provides practical and valuable skills, and can be compared to the added expertise gained through established fellowship training programs...