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Providing quality imaging even for larger patients

Best Practice
Philips CT Clinical Science Philips Healthcare • USA

Philips iDose4 at Charleston Area Medical Center

Who/where
Charleston Area Medical Center (CAMC) is the largest hospital system in West Virginia, and a non-profit, 838-bed, regional referral center with approximately 6,000 employees. The system is composed of four hospitals: General Hospital, Memorial Hospital, Teays Valley Hospital, and Women and Children’s Hospital. CAMC is home to one of the top heart programs in the US, the only kidney transplant center in West Virginia, the state’s premier cancer treatment center and the only freestanding children’s hospital in the state. CAMC is also designated a Level I trauma center.

Challenge
Providing quality patient care across multiple locations and care for patient populations that include large patients with a BMI>35.

Response
The Philips iDose⁴ reconstruction technique offers the ability to personalize image quality, significantly improve spatial resolution at low dose, and reduce noise with a natural appearance.
Johnsey Leef, III, M.D. radiologist
Johnsey Leef, III, M.D. radiologist

iDose⁴ at CAMC
Dr. Johnsey Leef, III, a radiologist practicing at Charleston Area Medical Center (CAMC), is proud that CAMC was one of the first clinical sites in the country to receive the newest reconstruction technique, iDose⁴, on its Philips iCT system. “We’ve always been concerned about high radiation doses, and have used breast and thyroid shields even before they were in vogue.” He shared an example of a patient who comes in yearly for a CT scan of her chest to monitor an aortic aneurysm. Dr. Leef said, “Compared with previous years, iDose⁴ has allowed us to significantly improve image quality at a low dose, especially through her shoulders where normally there is a large amount of streaking artifact.” Leef says that he has found the iDose⁴ reconstruction technique particularly useful for personalizing the dose without sacrificing image quality in larger patients.

CAMC currently has installed an iCT, a Brilliance CT 64-channel, and an iCT SP in CAMC Women and Children’s Hospital, which will also feature the Philips Ambient Experience to help transform the clinical environment.

Bringing enhanced image quality to large patients
He explains, “We have many patients with a body mass index (BMI) over 35. In the past, those patients tended to have worse studies because of their body size. There’s a certain amount of quantum scatter and artifact because the patients are so large, and the radiation dose doesn’t penetrate the patient very well and so the images aren’t as good. Part of the morbidity associated with obesity is that it’s not always possible to get the diagnosis in time. One of the things about iDose4 is that you can scan those patients with a low dose and all of the sudden you can improve the image quality and get rid of a lot of the artifact that has plagued scans of those patients. I’ve been incredibly impressed with the images from our patients with a BMI over 35.”

"At CAMC, we continue to strive for low dose for our entire patient population," - Leef said.

Putting iDose⁴ to the test
Leef was curious about the potential of iDose⁴ to enhance imaging on patients that had previous scans. He wanted to compare prior studies with and without iDose⁴, reconstruction technique. After the installation of iDose⁴, he retrospectively recorded scan parameters of each of those patients that came back for a repeat scan. “I found that each of those patients had a previous scan done prior to the introduction of iDose⁴. I was able to look at each study side by side and experience the improvement in image quality at a low dose,” he reports. “The image quality was phenomenal compared to the studies those patients had a year ago, or four months prior, or whenever the previous exams were done.”

Note: Johnsey Leef, III, M.D. is an employee of Associated Radiologists Inc. The views expressed are his and do not necessarily reflect those of CAMC.


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Apr 30, 2012

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Best Practice
Brilliance 64-channel, iCT, iCT SP / iCT TVI
abdomen, Ambient Experience, bariatric, Body, Cardiac, iDose4, image quality, low dose, Musculoskeletal, Pelvis, radiation dose, Shoulder, spatial resolution, Thorax
 

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