לייכטר

לפרטים על תואר ראשון ושני

למידע נוסף על לימודים אקדמיים בלבד השאירו פרטיכם ונחזור בהקדם

ראשי » לייכטר
פרופ' לייכטר יצחק,
מרצה וחוקר
  • 02-6751-205
בניין לאו חדר 421
  • בתיאום מראש

Curriculum Vitae
קורות חיים

Department of Applied Physics/Electro-Optics

Jerusalem college of Technology

Hava'ad Haleumi St. 21

POB 16031
Jerusalem 91160, Israel

E-mail: leichter@jct.ac.il
Phone: +972-2-675-1205 
Fax: +972-2-675-1045 
Secretary: +972-2-675-1131 
Office: Room 421, Lev Building
Office hours: by appointment

Biography

2011-            Coordinator of the Department of Applied Physics, Machon Tal Campus, The Jerusalem College of Technology.

2010-2011    Chairman of the Department of Applied Physics, The Jerusalem College of Technology.

2009 -           Coordinator of Medical Engineering Studies, Department of Applied Physics, The Jerusalem College of Technology.

2002-2010    Chairman of the Medical Engineering Division, Department of Applied Physics, The Jerusalem College of Technology.

1993-            Associate Professor, Department of Physics and Electro-Optics, The Jerusalem College of Technology.

1984-1992    Assistant Professor, Department of Physics and Electro-Optics, The Jerusalem College of Technology.

1983-            Medical Physicist, Department of Radiology, Hadassah Medical Center, Jerusalem. In charge of radiation safety, quality assurance and teaching program for residents and technologists.

1982-1983    Post Doctoral Scholar (Medical Physics), Department of Radiological Sciences, The University of California, Los Angeles, Supervisor: Prof. M. Greenfield

1975-1982    Ph.D. (Physics), The Hebrew University of Jerusalem,  Racah Institute of Physics

 

Courses and Seminars

  • Fourier Theory in Optics
  • Light sources and Lasers
  • Optical and Thermal detectors
  • Physical Optics
  • Imaging Devices in Medicine
  • Advanced Technologies in Medical Engineering.

 

Research

  • Computer-assisted detection of breast cancer
  • Computer-assisted diagnosis of thoracic nodules
  • Evaluation of bone tissue quality by image processing of digital bone radiographs
  • Image processing of Full-field Digital Mammograms
  • Tissue and material characterization by Dual-energy Spectral Detector CT
  • Reducing radiation dose to the patient in CT and Interventional Angiography.
  • Image processing of fluoroscopic images of kidney and upper-urinary tracts.

   Research collaborators and related sites

  • Dept. of Radiology, Hadassah University Hospital. Computer-assisted detection and classification of breast cancer in Digital Mammography. Collaboration with Dr. S. Fields
  • Dept. of Orthopedic Surgery, Hadassah University Hospital. Fast Fourier Transform of bone trabeculae on digital proximal-femur radiographs for estimating fracture risk. Collaboration with Prof. M. Liebergall, Dr. O. Safran
  • Dept. of Radiology, Hadassah University Hospital. Computerized detection of lung nodules in Digital Chest Radiography. Collaboration with Prof. D. Shaham
  • Dept. of Urology, Hadassah University Hospital. Computerized analysis of early-phase fluoroscopic images in retrograde urography for assessing  the clearance rate of upper urinary-tracts. Collaboration with Dr. M. Duvdevani
  • Dept. of Radiology, Hadassah University Hospital. Quantitative analysis of contrast media enhancement in suspicious findings, using Dual-layer Spectral CT. Collaboration with Prof. J. Sosna, Dr. M. Gabbai
  • Dept. of Orthopedic Surgery, Hadassah University Hospital. Advanced radiographic methods for the early diagnosis of metabolic bone diseases. Collaboration with Prof. M. Liebergall, Dr. O. Safran
  • Philips Medical Systems, Israel. Exploring the advantage of virtual mono-energy images reconstructed by Dual-layer Spectral CT for increasing contrast-to-noise ratio and correcting beam-hardening effects. Collaboration with Dr. A Altam, Prof. J. Sosna, Dr. M. Gabbai
  • Dept. of Radiology, Hadassah University Hospital. Improving the radiographic image quality while reducing patient exposure to ionizing radiation, in Interventional Angiography. Collaboration with Prof. A. Bloom
  • Dept. of Radiology, Hadassah University Hospital. Computerized processing of digital mammograms for a quantitative evaluation of breast tissue composition. Collaboration with Dr. R. Lederman.

 

     Prizes and Awards

2008 - 1st prize, Poster Award Winner, 9th Intrnational Workshop in Digital Mammography, July 2008, Tucson, Arizona.

2005 - The Award for the Best Clinical Poster presentation of the 5th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery, June 2005, Helsinki, Finland.

1994 - The special Merit Award for excellence, from the British Friends of JCT.                          

1987 -  The Juludan Award for Outstanding Scientific Research Achievements -  Technion - Israel Institute of Technology. 

 

Patents

  • U.S. Patent No. 7418119 - Issue Date: August 26, 2008 - Title: “Display for Computer-Aided Evaluation of Medical Images and For Establishing Clinical  Recommendation Therefrom”. Inventors: Bamberger P, Lederman R,  Leichter I.
  • U.S. Patent No. 7,203,350 - Issue Date: April 10, 2007 - Title: “Display for Computer-Aided Diagnosis of Mammograms. Inventors: Leichter I, Bamberger P, Novak B.
  • European Patent No. 0811205 - Issue Date: July 31, 2003 - Title: “A System and Method for Processing Images of Living Tissues”.Inventors: Alexandrov Y, Bamberger P, Fields S, Leichter I, Mendelevich V.
  • US Patent No. 5,970,164 - Issue Date: October 19, 1999 - Title:  “System and Method for Diagnosis of Living Tissue Diseases”. Inventors: Bamberger P, Leichter I, Fields S, Alexandrov Y, Mendelevich V.
  • U.S. Patent No. 5,946,407 - Issue Date: August 31, 1999 - Title: “System and Method of Scanning Medical Images Using Adjustable Exposure Time and Brightness”. Inventors: Bamberger P, Fields S, Leichter I.
  • U.S. Patent No. 5,854,851 - Issue Date: Dec. 29, 1998 -  Title: “System and Method for Diagnosis of Living Tissue Diseases using Digital Image Processing”. Inventors: Bamberger P, Leichter I, Fields S.
  • Israel Patent No. 106691 - Issue Date: May 10, 1998 - Title: “System and Method for Diagnosis of Living Tissue Diseases”Inventors: Bamberger P, Leichter I, Fields S.

 

Professional duties

2013:    Teaching a national physics course for all residents in diagnostic radiology in Israel.  Under the auspices of the Scientific Counsel of The Israel Medical Association.

2012:     The annual meeting "Optical Engineering 2012" of the Optical Engineering Chapter of the Society of Electrical and Electronic Engineering in Israel (SEEEI), Bar-Ilan University, June 2012, Israel. Member of the Organizing Committee and chairing the "Medical Optics" session at the meeting.

2011:     The annual meeting "Optical Engineering 2011" of the Optical Engineering Chapter of the Society of Electrical and Electronic Engineering in Israel (SEEEI), Holon Institute of Technology, July 2011, Israel. Member of the Organizing Committee and Chairing the "Medical Optics" session at the meeting.

2010:     The annual meeting "Optical Engineering 2010" of the Optical Engineering Chapter of the Society of Electrical and Electronic Engineering in Israel (SEEEI),  The Jerusalem College of Technology, July 2010, Israel. Member of the Organizing Committee and chairing the "Medical Optics" session at the meeting.

2005- 2012: Director of Clinical Research, Siemens Computer Aided Diagnosis Ltd, Jerusalem, Israel.

2002-2004:  Chairman of the Committee for the establishment of a National Radiation Safety Program for training medical residents and radiation workers.

1997-2002:   Member of the Organizing Committee of 5 meetings of the "Annual Jerusalem Symposium on Medical Physics and Medical Instrumentation", the Jerusalem College of Technology.

 

Selected Publications

  • Ben-Bassat H., Klein B., Leichter I.  Biocompatibility of a New Apatite (HA-SAL1) as a Bone Graft Substitute.  (1995) In: Encyclopedia of Biomaterials and Bioengineering.  Marcel Dekker, Inc., Northeastern University, Boston pp. 2571-2589.      
  • Leichter I., Neeman V., Liebergall M., Ostrovsky B. Quantitative Analysis of Trabecular Microstructure by Optical Processing of Bone Radiographs. (1996) In: Biomedical Sensing, Imaging, and Tracking Technologies. R. A. Lieberman, H. Podbielska, T. Vo-Dinh, (eds.), SPIE 2676, pp. 65-71.
  • Fields S., Leichter I., Bamberger P., Novak B., Lederman R., Behar D., Buchbinder S. (1996) Clinical Evaluation of Computerized Enhancement and Analysis of Mammographic Findings. In:  Digital Mammography '96.  K. Doi, M. L. Giger, R. M. Nishikawa, R. A. Schmidt (eds.)  Elsevier Science, New York, pp. 81-85.
  • Lederman R, Leichter I, Bamberger P, Novak B, Fields S, Buchbinder SS. (1998) Interactive Quantitative Characterization of Micro-calcifications on Digitized Film-Screen Mammograms. In: Digital Mammography '98. N. Karssemeijer, M. Thijssen,  J. Hendriks,  L. van Erning (eds.), Kluwer Academic Publishers, Dordrecht, Netherlands, pp. 221-224.
  • Leichter I, Lederman R, Bamberger P, Novak B, Fields S, Buchbinder SS. (1999) The use of an interactive software program for quantitative characterization of microcalcifications on digitized film-screen mammograms. Invest Radiol 34: 394-400
  • Ben-Bassat H., Klein B.Y., Leichter I., Liebergall M., Segal D., Kahana F., Sarig S. (2000) HA-SAL2 - Novel Bone Graft Substitute  with Composition Mimicking Bone Mineral. In: Biomaterials Engineering and Devices: Human Applications, Volume 2. Wise D. et al (eds.), Humana Press, Totowa, New Jersey, pp. 155- 170.
  • Leichter I, Fields S, Nirel R, Bamberger P, Novak B, Lederman R, Buchbinder S. (2000) Improved mammographic interpretation of masses using computer-aided diagnosis. Eur Radiol 10: 377-383
  • Leichter I, Buchbinder S, Bamberger P, Novak B, Fields S, Lederman R. (2000) Quantitative characterization of mass lesions on digitized mammograms for computer-assisted diagnosis. Invest Radiol 35: 366-372
  • Leichter I, Lederman R, Novak B, Bamberger P, Fields S, Buchbinder S. (2000) Optimizing parameters for computer-aided diagnosis of microcalcifications in mammography. Acad Radiol 7: 406-412
  • Leichter I, Simkin A, Neeman V, Jabschinsky C, Schoenfeld D, Foldes J, Liebergall M. (2001) Optical processing of radiographic trabecular pattern versus BMD of the
  • Leichter I, Buchbinder S, Lederman R, Novak B, Bamberger P, Fields S. (2002) Can size of microcalcifications predict malignancy of clusters in mammography? Acad Radiol 9: 18-26
  • Fields S, Lederman R, Buchbinder S, Novak B, Sklair M, Bamberger P,   Leichter I. (2002) Improved mammographic accuracy with CAD assisted ranking of lesions. In: Digital Mammography IWDM 2002, H.O. Peitgen (ed.) Springer-Verlag Berlin Heidelberg, Germany, pp. 292-296.
  • Lederman R, Leichter I, Novak B, Bamberger P, Fields S, Buchbinder S. (2003) Stratification of mammographic cases by BIRADS category with the assistance of a CAD system. Eur Radiol 13: 347-353
  • Leichter I, Lederman R, Buchbinder SS, Bamberger P, Novak B, Fields S. (2004) Computerized evaluation of mammographic lesions: what diagnostic role does the shape of individual microcalcifications play compared to the geometry of the cluster? Am J Roentgenol 182: 705-712
  • Buchbinder S, Leichter I, Lederman R, Novak B, Bamberger P, Sklair-Levy M, Yarmish G, Fields S. (2004) The use of computer-aided classification (CAC) in BI-RADS category 3 lesions. Radiology 230: 820-823
  • Leichter I, Lederman R, Buchbinder S, Srour Y, Bamberger P, Sperber F. (2006) Computerized classification can reduce unnecessary biopsies in BI-RADS category 4A lesions. Susan M. Astley et al. (Eds): IWDM 2006, LNCS 4046, Springer-Verlag Berlin Heidelberg, pp 76-83
  • Bamberger P, Leichter I, Merlet N, Ratner E, Fung G, Lederman R.  (2008) Optimizing the CAD Process for Detecting Mammographic Lesions by a New Generation Algorithm Using Linear Classifiers and a Gradient Based Approach. Krupinski EA (Ed.): IWDM 2008, LNCS 5116, Springer-Verlag Berlin Heidelberg, Germany,  pp. 358-365
  • Leichter I, Lederman R, Ratner E, Merlet N, Fung G, Krishnapuram B,  Bamberger P. (2008) Does a mammography CAD algorithm with varying filtering levels of detection marks, used to reduce the false mark rate, adversely affect the detection of small masses? Krupinski EA (Ed.): IWDM 2008, LNCS 5116, Springer-Verlag Berlin Heidelberg, Germany,  pp. 504- 509
  • Hidas G, Sosna J, Neeman V, Leichter I, Bocher M, Pode D, Gofrit ON. (2008)  Assessment of Individual Renal Function by Measuring Relative Parenchymal Volume. The Journal of Urology.  179: 681- 685
  • Hidas G, Sosna J, Neeman V, Leichter I, Bocher M, Pode D, Duvdevani M, Gofrit ON. (2008) Estimating Relative Renal Function from Relative Parenchymal Volume – A feasibility Study. Journal of Endourology.  22: 2527- 2530
  • Neeman V, Hershko M, Reisner N, Leichter I, Hidas G, Pode D, Duvdevani M. (2009) Computer Aided Evaluation of Upper Urinary Tract Obstruction.  MIAD 2009, BIOSTEC 2009, ISBN: 978-989-8111-77-7:24-33
  • Lederman R, Leichter I, Ratner  E, Abramov M, Manevich A, Stoeckel J. (2010)  Should CAD Be Used as a Second Reader? – Exploring Two Alternative Reading Modes for CAD in Screening Mammography. In: Digital Mammography - IWDM 2010, (LNCS 6136), J. Marti et al (eds.), Springer-Verlag Berlin Heidelberg, Germany, pp. 161- 167.
  • Leichter I, Gallimidi Z, Heyman-Reiss A, Merlet N, Ratner  E, Abramov M, Stainvas I, Lederman R. (2010) Is CAD Able to Assist in the Detection of Subtle Breast Findings – Lobular Cancers, and T1a/T1b Masses in Dense Breasts? In: Digital Mammography- IWDM 2010, (LNCS 6136), J. Marti et al (eds.), Springer-Verlag Berlin Heidelberg, Germany, pp. 474- 480.
  • Leichter I, Lederman R, Manevitch A. (2012) Detecting Low-Conspicuity Mammographic Findings - The Real Added Value of CAD, In: Digital Mammography- IWDM 2012, (LNCS 7361), A.D.A. Maidment et al (eds.), Springer-Verlag Berlin Heidelberg, Germany, pp. 673-681.
  • Segal E, Weinberg I, Leichter I, Klimov A, Giri J, Bloom A.I. (2013) Patient radiation exposure during percutaneous endovascular revascularization of the lower extremity. Journal of Vascular Surgery, In print