Addressing the obstacles to confident diagnosis:

Inconclusive studies

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Inconclusive
studies

Lesion detection & quantification

Disease progression tracking

Urgent care
imaging

Too many imaging studies still result in inconclusive reports due to poor visualization or nonvisualization of anatomical structures, which can delay diagnosis and treatment, add stress for patients and staff and increase costs. The usual suspects for compromised image quality are well known: acquisition parameter errors, motion, fat and metal artifacts, operator error, and technology limitations.

The good news: we are making significant progress against the most challenging obstacles to diagnostic confidence in every imaging modality. Here are some examples of what that looks like.

What you'll see

Fine-tuning fluoroscopy

Learn more about Dynamic UNIQUE:

Learn more

Delivering diagnostic certainty in CT

Learn more about IQon spectral CT:

Learn more

Revealing more with digital PET

Learn more about Vereos digital PET/CT:

Learn more

New perspectives in MRI

Learn more about Multivane XD:

Learn more

Empowering radiologists, the unsung heroes of value-based care

The past 30 years have seen medical imaging technology revolutionize the way we deliver healthcare. Today, more patients than ever undergo diagnostic imaging scans, making radiologists the often-invisible hero in determining their path to confident diagnosis and treatment.

Learn more

Fine-tuning fluoroscopy

Addressing quantum noise

Modern fluoroscopy poses significant challenges for digital image processing. Low-dose settings are commonly used today in clinical practice, particularly for children, who are most sensitive to the damaging effects of ionizing radiation. While a reduction in dose is always desirable, these settings inevitably result in images with high quantum noise, which may be difficult for radiologists to read and can result in longer fluoroscopy times.

Dynamic UNIQUE combines noise suppression by temporal averaging (inter-frame) and spatial noise suppression (intra-frame). Temporal averaging, which accumulates the dose of successive frames, results in a depiction of static anatomical structures that mimics high-dose acquisition. However, it may fail in areas of motion. Dynamic UNIQUE suppresses temporal averaging when movement is detected preventing lag and shadowing of moving structures.

In moving regions of the image and if the sequences are very short, Dynamic UNIQUE applies spatial noise suppression. It uses a physical noise model to assess the contrast-to-noise ratio, which allows for structure-adaptive noise suppression within a single frame. The strength of the spatial noise suppression is adapted to the strength of the temporal noise reduction in adjacent areas. As a result, the image noise level is kept consistently low over the entire image.

Reduced noise impression results in improved detail visibility. Anatomical details are preserved in every image, with no artifacts of moving structures, no lag effect and no shadows of catheters, tubes and lines. Radiologists experience less risk to miss important details, leading to more confidence in the diagnosis.

Addressing quantum noise

Modern fluoroscopy poses significant challenges for digital image processing. Low-dose settings are commonly used today in clinical practice, particularly for children, who are most sensitive to the damaging effects of ionizing radiation. While a reduction in dose is always desirable, these settings inevitably result in images with high quantum noise, which may be difficult for radiologists to read and can result in longer fluoroscopy times.

Dynamic UNIQUE combines noise suppression by temporal averaging (inter-frame) and spatial noise suppression (intra-frame). Temporal averaging, which accumulates the dose of successive frames, results in a depiction of static anatomical structures that mimics high-dose acquisition. However, it may fail in areas of motion. Dynamic UNIQUE suppresses temporal averaging when movement is detected preventing lag and shadowing of moving structures.

In moving regions of the image and if the sequences are very short, Dynamic UNIQUE applies spatial noise suppression. It uses a physical noise model to assess the contrast-to-noise ratio, which allows for structure-adaptive noise suppression within a single frame. The strength of the spatial noise suppression is adapted to the strength of the temporal noise reduction in adjacent areas. As a result, the image noise level is kept consistently low over the entire image.

Reduced noise impression results in improved detail visibility. Anatomical details are preserved in every image, with no artifacts of moving structures, no lag effect and no shadows of catheters, tubes and lines. Radiologists experience less risk to miss important details, leading to more confidence in the diagnosis.

Managing contrast and brightness impression

Because fluoroscopy means live viewing, relevant diagnostic information in the images must be visible straightaway at the correct level of brightness and contrast. Furthermore, because the human eye is very sensitive to temporal variations, the contrast and brightness impression must be stable over time. This is particularly challenging in view of the rapid temporal variations occurring in fluoroscopy, particularly with respect to:

   - The body region under examination, e.g. when examining the esophagus
   - The field-of-view, e.g. when moving the patient or modifying the collimated area
   - Areas of direct radiation
   - The distribution of the contrast agent
   - The dose level

When the dose level or the field-of-view is modified (e.g. by modifying its size, by shifting it from the body center to the periphery, or by moving the patient), Dynamic UNIQUE automatically determines the signal level in the anatomical region and maps it to an appropriate brightness level. Areas of direct radiation are reliably detected and excluded from the brightness adjustment. In contrast, simpler methods include areas of direct radiation in adjustments, resulting in dark images and obscured anatomy, as well as annoying flickering.

Optimal image stability for fluoroscopy and spot images at any time leads to comfortable viewing of high-quality images, less time needed to adapt to the luminosity, and ultimately, a smooth and efficient workflow.

Learn more about Dynamic UNIQUE

Delivering diagnostic certainty in CT

Tackling indeterminate scans

Conventional CT scans often produce ambiguous or inaccurate data resulting in a need for additional testing. For example, in cases where a conventional image from a scan lacks the clarity typically provided by IV contrast, the resulting scan can be indeterminate, necessitating additional exams and resources.

IQon Spectral CT is the world’s first and only detector-based spectral CT which consistently captures spectral information without special planning or set-up.

Diagnostic certainty exists when multiple layers of spectral data allow the first exam to be the right exam, whether it’s with MonoE images, iodine images, virtual non-contrast images or Z effective images. In addition, IQon Spectral CT has been shown to reduce average scan cost.*

* Norwood, Don, MD, MBA. Economic impact of IQon for patients with renal insufficiency. 2017. Data on file.

Diagnostic Certainty (opens in a new window) download image

Clinical case: A patient arrives in the ER with abdominal pain and is scanned to determine the cause. The conventional image result was indeterminate (left); however, because the patient was scanned on the IQon (right) using the spectral Low Mono E image the contrast visualization was improved.

Identifying PE (opens in a new window) download image

Images courtesy University Hospitals, Cleveland, Ohio, USA

Learn more about IQon spectral CT

Identifying pulmonary emboli

Small pulmonary emboli (PE) can be difficult to identify on conventional CT images alone, and perfusion defects in the area of the PE can be overlooked.

The IQon Spectral CT aids the radiologist by providing spectral results that can help identify perfusion defects. Multiple spectral results available with every patient scanned on the IQon Spectral CT can aid the radiologist in the ability to identify multiple perfusion results.

In this example, the patient presented with a suspected PE. After reviewing the conventional scan, spectral results were applied, resulting in multiple perfusion defects being identified by the radiologist in both lungs.

Images courtesy University Hospitals, Cleveland, Ohio, USA

Revealing more with digital PET

Faster scans, less discomfort

While PET/CT is the modality of choice for large-anatomical-area lesion detection, acquisition time for analog systems (15-20 minutes) can result in patient discomfort and associated motion artifacts that compromise image quality.

Vereos Digital PET/CT is the world's first and only true digital PET/CT system, which positions radiologists to go beyond current limitations to improve patient care. Vereos’ Digital Photon Counting technology enables uncompromised lesion detectability at 1/10th the time.* With this technology, radiologists can perform a whole body FDG study in under 5 minutes.

Given Vereos’ increased sensitivity and lesion detection in less time, radiologists may adjust acquisition times depending on their need to accommodate patient comfort.

* Zhang, J, Evaluation of speed of PET acquisition: How fast can we go? - A validation of list mode PET simulation approach with true acquisitions, SNMMI 2017.

Faster Scans (opens in a new window) download image

Equivalent detectability of neck lesion at 9 sec/bed, relative to a 90 sec/bed acquisition.

Learn more about Vereos digital PET/CT

New perspectives in MRI

Addressing breathing motion artifacts

Imaging of the shoulder is susceptible to breathing motion artifacts, particularly when scanning in axial orientation.

Using MultiVane XD, Philips makes it possible for the radiology staff to deliver imaging with motion reduction through robust motion correction. Its extended reconstruction algorithm analyzes and corrects blades so that image distortions due to both translational and rotational components of rigid body motion are removed. Additionally, the k-space center of blades corrupted with through-plane motion is removed to further decrease motion artifacts.

MultiVane XD makes it possible for radiologists to stick to their basic sequence optimization steps for obtaining high-quality images. By providing motion correction in short scan times, MultiVane XD delivers high resolution diagnostic images even in the case of severe patient motion.

Comparison of axial fat suppressed PD-weighted imaging with (left) and without (right) MultiVane XD in the left shoulder demonstrates imaging with MultiVane XD provides excellent image quality, even in presence of motion.

Learn more about motion reduction in shoulder imaging with Multivane XD

Learn more about motion reduction in liver imaging with Multivane XD