Beyond the Scan

Fusing CT images with real-time ultrasound can build diagnostic confidence

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There’s a lot to be said about the amazing image quality of CT, especially now that it’s in high definition. But that won’t stop the drive for more innovations to help build confidence in every diagnosis and improve productivity  in radiology departments.

To that end, GE’s LOGIQ® E9 ultrasound system allows technologists and radiologists to merge real-time ultrasound with previously acquired CT, MR, PET, or DICOM images to gain a better level of diagnostic confidence. Developed in concert with a global team of radiologists and sonographers, LOGIQ E9 produces image quality. It also includes a GPS-like technology that lets users track and mark anatomy during ultrasound exams, which boosts confidence and productivity in diagnostic and interventional procedures.

LOGIQ E9 can also focus on productivity because it emphasizes diagnoses, rather than “busywork.” This direction is possible due to a customizable scanning program that automatically executes frequently performed steps. The result is a 79-percent reduction in keystrokes and a 54 percent decrease in exam time, compared with other ultrasound systems (based on an internal study performed by a third-party sonographer).

Keying in on Industry Trends

The development of LOGIQ E9 is rooted in several key industry trends.

Changing patients. Healthcare providers are seeing the number of obese patients continue to rise. The population is also aging, particularly in the United States. As a result, imaging and interventional procedures have become more difficult.

Mounting information. The amount of available information to help diagnose and treat patients continues to rise and become more complex. Another fact is that a significant number of sonography exams are for patients who have already had a diagnostic imaging exam, such as CT. The challenge is to efficiently process the information and effectively use it to improve patient care.
Work-related issues. Ultrasound procedures are at an all-time high. Yet, the need to do more with less is driving the need for increased efficiency. It’s also widely acknowledged that sonographers are at risk for developing work-related musculoskeletal disorders.

Dose reduction. Minimizing radiation exposure by using ultrasound, or other appropriate imaging modalities, wherever possible is key.

LOGIQ E9 employs a number of technologies. For example, the Agile Acoustic Architecture uses dynamic models of anatomy and physics to factor in different body types. 

As a result, the system has the ability to acquire remarkable images faster on any patient. With LOGIQ E9, clinicians can get image uniformity in near and far fields, achieve deep penetration even on large patients, and increase exam consistency.

The system’s technically advanced and ergonomically designed E-Series transducers work with the Agile Architecture to improve image quality. Transducers allow for increased penetration, along with spatial and contrast resolution.

The Beauty of Fusion

Integrated Volume Navigation tools capitalize on the volume imaging capabilities built into the LOGIQ E9’s Agile Architecture by adding an advanced position navigation system. This combination enables innovative capabilities, such as fusion imaging and a GPS-like capability. 

Fusion brings previously acquired CT, MR, PET, or ultrasound images directly into the ultrasound system. It then merges or “fuses” them with real-time ultrasound. As such, clinicians have the ability to compare lesions, while taking advantage of the strengths of each modality. Clinicians can virtually scan the previous study to match the live ultrasound, make a side-by-side comparison or even overlay the images, and monitor interventional procedures with real-time fused images.

The GPS-like tool allows users to visually track their positioning during a scan. It can also be used to mark points in the body to find an anatomical structure from a different angle, which helps guide biopsies, monitor ablations, and simplify counting masses, lesions, and nodules.

The ability to fuse images and make direct comparisons with images from other modalities promotes diagnostic confidence. It also helps minimize the need for repeat procedures for many patients, which in turn, reduces costs.

With work-related issues in mind, LOGIQ E9 was designed with direct input from sonographers and radiologists. It includes a customizable program, called “scan assistant,” which streamlines the scanning process. Scan assistant allows users to take control of the most important elements of an exam as it automatically manages less critical functions. Scan assistant steers color Doppler, and sets up image controls and modes. It also initiates and automatically completes required measurements, and inserts comments. 

LOGIQ E9’s single, compact system is 20 percent smaller, on average, and up to 100 pounds (45.36 kilograms) lighter than other comparable systems. Additional ergonomic features include: a full-sized, floating keyboard that adjusts to the user and eliminates straining during reaching; a touch screen panel that can be customized to each user’s exact mode of operation; and an intuitive control layout that clusters 95 percent of frequently used keys around the trackball. Also, front and rear handles aid transporting and maneuvering the system, and e-series transducers have lighter plastics, and ridges for improved handling and proper grip.

The ability to fuse CT, PET, and MR images can be accomplished on the spot. With ultrasound image quality, a GPS-like tool for marking and tracking anatomy, customizable protocols that automatically manage tasks, and an ergonomically efficient level of design, clinicians can achieve greater levels of diagnostic confidence.  

– Bill Kyle is marketing manager of general imaging ultrasound and Kirstin LaConte is LOGIQ leadership global product manager at GE Healthcare in Waukesha, Wis. Direct questions and comments to editorial@rt-image.com.