Types of Radiation Therapy for Cancer

As one of New Jersey’s top radiation oncologists, Dr. Karp specializes in several types of radiation therapy, a form of cancer treatment that destroys and shrinks tumors. Depending on the type, size and location of the cancer, as well as the patient’s medical health history, certain types of radiation therapy may be more effective than others. To learn more about treating your cancer with radiation therapy, schedule a consultation at the Rahway Regional Cancer Center today.

External Beam Radiation Therapy

Many cancers can be treated with external beam radiation therapy, which utilizes a linear accelerator that aims high-energy particles at the tumor. The machine does not touch you, but rather moves around you. It’s designed to target only the site of the cancer in an effort to minimize damage to nearby cells. The two main kinds of external beam therapy Dr. Karp uses include:

  • Intensity-Modulated Radiation Therapy (IMRT): IMRT attacks the tumor from several directions with small radiation beams. Treatment usually occurs once a day over the course of several weeks.
  • Image-Guided Radiation Therapy (IGRT): While performing IGRT, repeated scans of the tumor are taken to help guide the treatment. The scans help doctors make adjustments to achieve more accurate results.


Brachytherapy is a type of internal radiation therapy. Radio Active Sources are expertly placed in the tumor. Over the years, Dr. Karp has performed this procedure over 3,000 times and has become one of the world’s leading experts in high-dose brachytherapy. This type of radiation therapy is most commonly used to treat cancers of the cervix and esophagus.

Cancer Radiation Treatment with Dr. Karp

Using cutting-edge equipment and techniques, combined with highly sophisticated computer software, Dr. Karp has offered hope and unmatched, expert care to thousands of patients. He and his team create a personalized treatment plan for every patient, so you can feel confident knowing you’re getting the best care available. And thanks to our experienced staff, you’ll receive assistance with paperwork, door-to-door transportation for treatments and all the support needed to achieve the best possible outcome.

For more information about radiation therapy or to schedule an appointment with Dr. Karp, call 732-382-5550 today.