banner ad

Visit Spiegel website
Deposition Designation Station

Nuclear Medicine Expert Witnesses

Sort Non-Featured Profiles by
Check for SynapsUs
David S. Dinhofer, MD, MSMI, FACR
2142 State Route 26
Hasbrouck Heights, New Jersey
Vestal NY 13850
phone: 646-504-4569
David S. Dinhofer, MD, MSMI, FACR, has over 35 years of experience practicing Radiology and Health / Medial Informatics.

A Fellow of the American College of Radiology, Dr. Dinhofer is on the staff of SUNY-Downstate as head of Emergency Radiology at the University Hospital teaching medical students, residents, and fellows. His research focused on radiation reduction strategies, patient safety, radiation ethics, simulation lab for software evaluation in medicine, patient centered HIT, and shared decision making for patient provider interactions.

Dr. Dinhofer is a reviewer for the journal, Emergency Radiology, as well as on the reviewer for paper submissions to the Sigma Xi Research Honor Society and American Medical Informatics Association.

Litigation Support - Dr. Dinhofer has performed clinical evaluations for malpractice cases and personal injury cases. He has been an expert witness and testified in court for attorneys representing both Plaintiff and Defendant. Dr. Dinhofer currently has state licenses in New York, New Jersey, Pennsylvania, Florida, Louisiana, and Alabama.

Areas of Expertise:
  • Interpretation of Medical Images (CT, MRI, US, Nuclear Medicine, X-ray)
  • Workflow Analysis
  • Quality Improvement
  • Radiation Reduction Strategies and Patient Safety
  • Business Analytics
  • Risk Management
  • Medical Informatics (Product Development, Start up Advisor
  • Implementation of HIT and PACS
  • Meaningful Use Compliance
  • Radiology Business Administration
  • Governance, Strategic Planning
  • Medical Ethics

  • View Dr. Dinhofer's Consulting Profile.
    Check for SynapsUs
    Radiology & Nuclear Medicine
    514 Arrington Avenue
    North Augusta SC 29841
    phone: 573-808-0918
    Dr. Bennett S. Greenspan is trained and Board-Certified in Radiology and Nuclear Medicine. He has 27 years of experience in clinical Radiology and Nuclear Medicine. He has been involved for 27 years in teaching Nuclear Medicine to residents in Radiology and Nuclear Medicine, Medical Students, and Nuclear Medicine Technology Students. In addition, Dr. Greenspan has further training in Radiation Safety, Health Physics, and Medical Physics, and has a M.S. degree from UCLA in Medical Physics.

    Dr. Greenspan has been involved in Quality Assurance in Nuclear Medicine since 1989, and has been on the QA committee for Nuclear Medicine of the American College of Nuclear Physicians or the Society of Nuclear Medicine continuously since then. He has evaluated multiple practices of Nuclear Medicine around the country through this process, which involves evaluation of a questionnaire and a site visit.
    Check for SynapsUs
    Michael S. Gossman, MS, DABR, FAAPM
    Chief Medical Physicist & RSO
    Regulation Directive Medical Physics
    104 Hildeen Court
    Russell KY 41169
    phone: 606-232-9283 (cell)
    • Expert Witness - Medical malpractice, misadministration, medical event (Radiation Oncology, Radiology, Nuclear Medicine)
    • Expert Witness - Radiation exposure, radiation dose, radioactivity and radiobiological calculations
    • Expert Witness – Patent infringement (intellectual property all categories)
    • Expert Witness – Medical physics, supervision of (medical physicist, dosimetrist, radiation therapist, radiologic technologist)
    • Expert Witness - Termination of employment
    Michael Gossman Medical Physicist Expert PhotoMichael S. Gossman, M.S., DABR, FAAPM, is a Board Certified Qualified Expert Medical Physicist, an honorary Fellow of the American Association of Physicists in Medicine (AAPM), and currently the Chief Medical Physicist & Radiation Safety Officer (RSO) in Radiation Oncology at Tri-State Regional Cancer Center in Ashland, KY.

    Chief Gossman is extra-professionally an Accreditation Site Reviewer for the American College of Radiation Oncology (ACRO) and the American College of Radiology (ACR), was a 2-term Ohio River Valley Chapter President of the AAPM, and formerly a Graduate School Professor of Clinical Medical Physics at Wright State University. He is the highest ranking scientist in medicine and has been in the field for 17 years.

    Chief Gossman's expertise involves the safe, effective and precise delivery of radiation to achieve the therapeutic result prescribed in patient care by radiation oncologists striving to treat cancer patients with particle accelerators and radioactive material. Extra-professionally, he is retired as the Interim Editor-in-Chief and Editorial Board Member for the Medical Dosimetry Journal, Editorial Board Member for the Journal of Applied Clinical Medical Physics, and served four years as a Medical Consultant to the U.S. Nuclear Regulatory Commission.

    Chief Gossman is directly and ultimately responsible for all technical and scientific aspects of cancer treatment. He directly supervises and oversees efforts from staff medical physicists, dosimetrists, radiation therapists and x-ray technologists. As an expert in radiation detector measurements, particle accelerator and radioactive material calibrations, and radioactive material handling, Mr. Gossman is a highly respected medical physicist by medical physicists nationally. He is also the owner of the Radiation Oncology Medical Physics consulting company Regulation Directive Medical Physics, LLC and employed extraprofessionally as a Senior Managing Scientist at Exponent, Inc. for medical device testing and expert witness efforts.

    Services Provided:
    • Medical expert witness
    • Medical consultant
    • Legal consultant
    • Review of: medical event, malpractice, and misadministration
    • Regulatory compliance
    • Investigation and audits
    • Independent medical evaluation of the probable deterministic effects of radiation exposures
    • Facility practice vs. standards review
    • Accreditation preparation
    • Shielding calculations
    • Accelerator acceptance testing & commissioning
    • Quality assurance
    • Peer review of the Chief Medical Physicist
    • Radiation measurements
    • Radiation calculations
    • Radiation safety
    • Dose determination
    • Calibration of medical accelerators
    • Treatment planning
    • Calculation of time and dose for treatment
    • Handling, shipping, receiving, and storing radioactive material
    • Calibrating radioactive material
    • Regulatory compliance
    • Interpretation of bioassay results and other data related to radiation exposure
    • Calculation of internal and external radiation doses, as necessary
    Regulation Directive Medical Physics
    104 Hildeen Court
    Russell, Kentucky, 41169
    Telephone: 606-232-9283
    Tri-State Regional Cancer Center
    Department of Radiation Oncology
    706 23rd Street
    Ashland, KY 41101
    Telephone: 606-232-9283
    8/6/2013 · Medical
    Cochlear implants, via direct electrical stimulation of the auditory nerve, allow the restoration of hearing and speech recognition in both adults and children having sensorineural deafness. These devices typically contain both extemal components (speech processor, microphone, transmitter) and intemal components (including the cochlear stimulator and electrode array), which are surgically placed under the skin behind the ear and in the cochlea.

    7/18/2013 · Radiology
    Inadequate research exists regarding testing of a ventricular assist device (VAD) for susceptibility to radiation damage. Specifically, minimal data are available to radiation oncologists prescribing treatment plans for patients with an implanted VAD. As the number of implanted devices increases, patients requiring radiation at tissue sites near or at the device will increase.

    6/28/2013 · Medical
    Improved outcomes and quality of life of heart failure patients have been reported with the use of left ventricular assist devices (LVADs).

    1/8/2013 · Radiology
    New research shows the effects of electron beams on implanted vascular access ports composed of plastic, determining how they impair the fluence of radiation around them.

    10/23/2012 · Radiology
    Abstract. Object: Where no society-based or manufacturer guidance on radiation limits to neuromodulation devices is available, this research provides the groundwork for neurosurgeons and radiation oncologists who rely on the computerized treatment plan clinically for cancer patients.

    7/25/2012 · Medical Physics
    Abstract-The medical community is advocating for progressive improvement in the design of implantable cardioverter-defibrillators and implantable pacemakers to accommodate elevations in dose limitation criteria.

    5/14/2012 · Radiology
    Since the first commercial multichannel cochlear implant was marketed by Cochlear in 1985 (1), use of the device has grown exponentially. As of mid-2010, more than 188,000 people worldwide have received a cochlear implant system (2). Recent developments in the manufacturing of cochlear implants by the market leader, Cochlear Limited (based in Australia), have resulted in an aim to provide electronically stable models (3).

    3/13/2012 · Medical Physics
    We detail, derive and correct the technical use of the solid angle variable identified in formal guidance that relates skyshine calculations to dose-equivalent rate.

    12/5/2011 · Radiology
    Abstract -- In order to determine a mouse's dose accurately and prior to engaging in live mouse radiobiological research, a tissue-equivalent tumor-bearing phantom mouse was constructed and bored to accommodate detectors. Comparisons were made among four different types of radiation detectors, each inserted into the mouse phantom for radiation measurement under a 6 MV linear accelerator beam.

    9/9/2011 · Radiology
    Skyshine radiation emanating from medical accelerator facilities is a phenomenon not well understood.

    7/22/2011 · Medical Physics
    In the process of radiation oncology department accreditation, surveyors pay close attention to continuous quality improvement in the clinical section.

    1/3/2010 · Medical Physics
    As promulgated by the Nuclear Regulatory Commission, packaging regulations for radioactive material are confusing (e.g., “activity” vs “contained” activity vs “total” activity). As a consequence, medical physicists are forced to secondguess the intent of the regulations.

    1/2/2010 · Medical Physics
    Recent improvements to the functionality and stability of implantable pacemakers and cardioverter-defibrillators involve changes that include efficient battery power consumption and radiation hardened electrical circuits. Manufacturers have also pursued MRI-compatibility for these devices

    12/31/2009 · Medical Physics
    Vascular access ports are used widely in the administering of drugs for radiation oncology patients. Their dosimetric effect on radiation therapy delivery in photon beams has not been rigorously established. In this work, the effects on external beam fields when any of a variety of vascular access ports were included in the path of a high energy beam are studied. This study specifically identifies sidescatter and backscatter consequences as well as attenuation effects.

    Edited by Oliver Vonend & Siegfried Eckert
    Michael Gossman is the author of Chapter 9: Clinical Concerns For and Strategies With Pacemakers in Radiation Oncology
    Authors: Todd Pawlicki, et al; Editors; Michael Gossman (Ch. 19), et al
    This comprehensive work highlights benefits of quality techniques, approaches to implementation, and guidelines for specific quality assurance steps related to equipment and procedures used in radiotherapy. After an overview of manufacturing and engineering techniques, the text addresses quality and safety issues in radiotherapy from both the physician and physicist viewpoints.