Archive for October, 2011

October 31, 2011

Working to Lower Radiation in CT Scans

The October 31 issue of the San Diego Business Journal features an article interviewing Imaging Healthcare Specialist’s Dr. Jon Robins. In the article Dr. Robins highlights Imaging Healthcare Specialist’s efforts to decrease the amount of radiation that patients are exposed to during CT scans. The article discusses policy as well as the implementation of new radiation lowering tools. You can read the complete article on page 10 at this link:

October 28, 2011

IHS Breast Cancer Awareness on CW 6 News

Imaging Healthcare Specialists’s Dr. Tena was featured on San Diego CW 6 News this month to promote Breast Cancer Awareness. Watch the video below.

October 27, 2011

IHS Low Dose CT explained in La Jolla Village News

Our own Dr. Johnson was featured in the October 27th edition of the La Jolla Villiage News. The article, written by Johnny McDonald, is shown here:

La Jolla specialists have established a CT-imaging program to lower the amount of radiation dosage needed for patients.

“The dramatic reduction of radiation dosage is based a great deal on the patient’s size, weight and age,” said Dr. John O. Johnson, a diagnostic radiologist at Imaging Healthcare Center. “We’re able to adjust the perimeters that control CT (X-ray computed tomography) exam dosage carefully and methodically.”

The center, located in the Regents Medical Plaza at 4150 Regents Park Row, Suite 195, is one of 11 imaging clinics in San Diego County. “We’re much more concerned about the exposure to radiation in youngsters and young adults,” Johnson said. “The reason for that is they are more radio sensitive. Their body cells are more quickly divided and they have a much longer life span.”

He said the exposure has been reduced by as much as 90 percent in select patients.

Statistics indicate the average American’s dose of radiation is six times greater than it was 10 years ago, predominantly due to the increased use in radiography as a diagnostic tool. Johnson said approximately 70 million CT scans are performed each year in the United States — about one in fiveadults. “With the rise in radiation exposure there is a theoretical increased risk of radiation-induced cancers,” he said.

Johnson received his diagnostic radiology residency training at UC, San Diego, where he served as chief resident in radiology. Since joining Radiology Medical Group in 1990, he has held several positions of leadership within the group. He currently sits on several committees within Scripps Health that deal with the selection and implementation of advanced medical imaging technology within the system.

Imaging examinations include MRIs, digital mammograms, lung cancer screening, angiography and osteoporosis evaluations. “CT is revolutionary in that we can diagnose conditions earlier and avoid more invasive, complicated procedures,” he said. “CT scans are lifesaving. Smoking, heavy drinking and environmental exposures are all cancer danger signs.”

We’re a leader in low dosage images and that’s the message we want to give the community,” he said.
Studies show that in the last 100 years, diagnostic radiology, nuclear medicine and radiation therapy have evolved from the original crude practices to advanced techniques that form an essential tool for all branches and specialties of medicine.

October 14, 2011

Commitment to Low-Dose CT Scans Help Ensure Patient Safety

Computed Tomography (CT) scanning, and related medical technologies, are towering milestones that have revolutionized the medical profession. Approximately 70 million CT scans are performed each year in the United States. This means that about one in five adults receive a CT scan annually. The scans, which utilize X-rays, result in cross-sectional images of the body which are successfully used to evaluate conditions of the sinus, chest, abdomen, pelvis, central nervous system, and musculoskeletal system. They have eliminated millions of exploratory surgeries and have allowed physicians to make critical diagnoses. CT imaging has become an indispensible tool in the practice of medicine.

The radiologists and technologists at Imaging Healthcare Specialists have modified existing CT exam protocols to dramatically reduce radiation dose based on a patient’s size, weight and age,” said John O. Johnson, M.D., Chief of CT Imaging at Imaging Healthcare Specialists. “Our low dose initiatives have reduced radiation exposure by as much as 90% in select patients. We are proud to be a leader in lowering radiation dose for our patients while maintaining imaging quality for our referring physicians.”

The increased use of CT scans nationwide has resulted in an unavoidable increase in cumulative radiation exposure to patients.  With the rise in radiation exposure, there is a theoretical increased risk of radiation-induced cancers.  “The natural lifetime cancer risk is 40%,” said Dr. Johnson. “Imaging Healthcare Specialists’ commitment to optimizing our CT protocols ensures that our patients receive the least amount of radiation exposure without compromising image quality, thereby reducing cancer risk.”

Imaging Healthcare Specialists has 11 offices throughout San Diego and south Riverside County, including Temecula, Oceanside, Encinitas, Poway, La Jolla, Chula Vista and San Diego.

October 13, 2011

New Research Shows PET Imaging Effective in Predicting Lung Cancer Outcomes

In a recent study out of the Seidman Cancer Center at University Hospitals (UH) Case Medical Center, it was found that Positron Emission Tomography (PET) scans helped a great deal in predicting which inoperable lung cancer tumors needed additional treatments. Not only do PET scans help in identifying lung cancer “hot spots”, but have now been shown to help doctors choose more effective methods for treating such cancer.

You can read more about this study, you can click here.