External Beam Radiation Therapy Makes a Quantum Leap


Vol. 9, No. 3
December, 1999

  • External Beam Radiation Therapy Makes a Quantum Leap

  • Ambulatory Surgery Unit Expands

  • New Island Hospital Breaks Ground

  • Winthrop is Y2K Ready

  • Indigo Laser Relieves Symptoms of Benign Prostate Hyperplasia

  • Rheumatoid Arthritis Study

  • Dr. Scott Named Heart Association President

  • New Interventional Radiology Suite Unveiled

  • Mammotome® Breast Biopsy Procedure

  • Drug May Help Prevent Lung and Brain Damage in Premature Babies

  • Winthrop Nurses Never Stop Learning

  • Clinical Trial for Pancreatic Cancer

  • Winthrop: A Center for Lifesaving Autologous Stem Cell Transplants

  • Carnival in Venice Benefits Winthrop

  • John Broder Named Businessperson of the Year

  • Yuletide Ball

  • Winthrop’s Ninth Annual Flu Immunization Program Reached 1,500 Senior Citizens

  • Teens for Tots/Teen Angels’ Donation to Child Life Program

  • Winthrop’s Deserving Volunteers Receive Awards

  • Volunteers Needed at Winthrop

  • Visiting Scholar from Taiwan Studies at Winthrop

  • For Long Island Children who don't have Health Insurance

  • Copyright

    Back to Publications


  • Alan J. Katz, MD, JD, Chief, Radiation Oncology, Radiology Department, (standing) utilizes the dual component Peacock® system on Albert McDonal, a patient diagnosed with a meningioma, a benign brain tumor.

      The Peacock® System
    • Heightens Accuracy
    • Increases Dosage
    • Spares Healthy Tissue


    Radiation oncologists at Winthrop are using the region’s most sophisticated external beam radiation therapy system that combines computerized treatment planning with the ability to shape the beam of radiotherapy. Medically eligible patients diagnosed with tumors of the head and neck, brain, spine, and prostate, are benefiting from the new Peacock® system. Winthrop’s specialists are able to treat specific, localized tumors with a higher dose of radiation and a greater degree of accuracy.

    “With Peacock®, the beam of radiotherapy can be more expertly modulated, sparing healthy tissue.”
    Alan J. Katz, MD, JD
    Chief, Radiation Oncology

    One of the Peacock system’s unique components is Mimic®, a multi-leaf collimator that allows radiation oncologists to shape the beam of radiotherapy precisely to the shape of the tumor. Mimic also incorporates “intensity modulation,” enabling practitioners to continually adjust the beam’s intensity. With this degree of control, specialists can deliver higher doses of radiation to the tumor, and lower doses to adjacent healthy tissue.

    Another benefit of Peacock is Corvus™, the only computer planning system on the market that utilizes inverse treatment planning. This means that the physician maps out both the tumor and healthy tissue. Then, the Corvus computer calculates, with amazing accuracy, the delivery of appropriate levels of radiation to the specific site. The Hospital’s existing linear accelerator serves as the radiation source.

    “Prior to obtaining the Peacock system, the physician and physicist plotted the fields, and the beam intensity was constant,” said Alan J. Katz, MD, JD, Chief, Radiation Oncology at Winthrop. “Now, we use the computer to plan treatment with greater precision. Being equipped with the Peacock system’s two major elements makes Winthrop’s service unique on Long Island,” Dr. Katz added.

    Dr. Katz and his colleague, Jonathan Haas, MD, Faculty Attending, Radiation Oncology Section, provide the treatment. A physicist, Jinchu Huang, PhD, supports the team with technical expertise.

    The Peacock system complements the full range of cancer treatment options at Winthrop, which include surgery, radiation, medical oncology, and supportive care.

    For further information on the Peacock system, contact Dr. Katz at (516) 663-2501.



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