CT

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Increased usability and precision

New X-ray contrast agent enhances vascular imaging

Researchers at the University of Zurich have developed a new X-ray contrast agent which is easier to use and distributes into all blood vessels more reliably, increasing the precision of vascular imaging. This reduces the number of animals required in research experiments. Various diseases in humans and animals – such as tumors, strokes or chronic kidney disease – damage the blood vessels.…

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Inner ear disorder

Using advanced X-ray technology to fight Ménière's disease

The organ of balance in the inner ear is surrounded by the hardest bone in the body. Using synchrotron X-rays, researchers at Uppsala University have discovered a drainage system that may be assumed to play a major role in the onset of Ménière's disease, a common and troublesome disorder. These results are published in the journal Scientific Reports. Ménière's disease is manifested in sudden…

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Algorithm-assisted diagnostics

AI in imaging: not as reliable as you'd think

Machine learning and AI are highly unstable in medical image reconstruction, and may lead to false positives and false negatives, a new study suggests. A team of researchers, led by the University of Cambridge and Simon Fraser University, designed a series of tests for medical image reconstruction algorithms based on AI and deep learning, and found that these techniques result in myriad…

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Better tissue discrimination, lower radioation dose

Improving image quality of CT scans

Computed tomography (CT) is one of the most effective medical tests for analysing the effects of many illnesses, including COVID-19, on the lungs. An international team led by the Universitat Oberta de Catalunya (UOC) has developed a new method that improves the quality of the images obtained from CT scans. The algorithm, which has been tested on simulated data, enables them to distinguish…

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What radiologists need to know

How lung disorders like COVID-19 affect children

Although the clinical symptoms of new pediatric lung disorders such as severe acute respiratory syndrome (SARS), swine-origin influenza A (H1N1), Middle East respiratory syndrome (MERS), e-cigarette or vaping product use-associated lung injury (EVALI), and coronavirus disease (COVID-19) pneumonia may be nonspecific, some characteristic imaging findings "have emerged or are currently…

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Imaging collaboration

AI quantifies COVID-19 in chest CT images

Hospitals and organizations worldwide joined forces with AI imaging company icometrix in a global initiative to leverage artificial intelligence (AI) in the fight against COVID-19. The multinational collaboration resulted in the development of an AI algorithm, icolung, which received CE-marking for clinical use in Europe. icolung is the first CE-marked AI solution for CT resulting from a…

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Chest X-ray, CT and more

Imaging the coronavirus disease COVID-19

Chest X-ray is the first imaging method to diagnose COVID-19 coronavirus infection in Spain, but in the light of new evidence this may change soon, according to Milagros Martí de Gracia, Vice President of the Spanish Society of Radiology (SERAM) and head of the emergency radiology unit at La Paz Hospital in Madrid, one of the hot spots for viral re-production of COVID-19.

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COVID-19 in radiology

CT outperforms lab diagnosis for coronavirus infection

In a study of more than 1,000 patients published in Radiology, chest CT outperformed lab testing in the diagnosis of 2019 novel coronavirus disease (COVID-19). Researchers at Tongji Hospital in Wuhan, China, concluded that CT should be used as the primary screening tool for COVID-19. In the absence of specific therapeutic drugs or vaccines for COVID-19, it is essential to detect the disease at an…

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Underrated technique

Pitfalls in pelvic CT imaging

Computed tomography (CT) plays an increasingly important role in assessing pelvic disease, particularly when patients present with acute abdominal pain. In addition, radiomic approaches on CT are being developed to increase the characterisation of ovarian cancer for optimising treatment planning. The subject, and wider role of CT in pelvic conditions, will be the focus of a presentation –…

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Cystic lesions of the pancreas

A more complex question than ‘good’ vs ‘bad’

Cystic lesions of the pancreas can occur in many forms, not all of which pose a serious threat to the patient. A thorough diagnosis using multi-modality imaging is therefore indispensable to differentiate between benign and malignant lesions. We spoke with Professor Valérie Vilgrain, from Hôpital Beaujon, Hôpitaux Paris-Nord Val de Seine, in Clichy, France, about the prevalence of cystic…

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Deep learning & CNN

Algorithm differentiates small renal masses on multiphase CT

A deep learning method with a convolutional neural network (CNN) can support the evaluation of small solid renal masses in dynamic CT images with acceptable diagnostic performance, according to an article published ahead-of-print in the March issue of the American Journal of Roentgenology (AJR). Between 2012 and 2016, researchers at Japan’s Okayama University studied 1807 image sets from 168…

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Advancements in CT and MR

Canon expands the power of AI across imaging modalities

Bringing the power of AI to routine imaging, Advanced intelligent Clear-IQ Engine (AiCE), Canon Medical’s Deep Learning Reconstruction (DLR) technology, is now being integrated across a broader portfolio of scanners with a wider range of clinical applications across modalities. Advanced intelligent Clear-IQ Engine (AiCE) was trained using vast amounts of high-quality image data, and features a…

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Chronic Obstructive Pulmonary Disease

New diagnostic criteria proposed For COPD

Researchers at National Jewish Health and dozens of leading institutions around the nation have proposed new criteria for diagnosing chronic obstructive pulmonary disease (COPD), the fourth leading cause of death in the United States. The proposal expands diagnostic criteria from a single measure of lung function to include environmental exposure, symptoms, and abnormal CT scans.

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X-ray parts

CE Mark for ALTA750 CT replacement tube

Richardson Healthcare announced it has received CE Mark approval for its ALTA750 X-Ray Tube, a form, fit and function replacement for the Canon/Toshiba CXB-750D/4A. Richardson ships the tube with a new cable and heat exchanger, and offers a full warranty. The CE Mark confirms that the product meets the requirements of the European Medical Device Directive, and signals conformity to patient and…

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Risk stratification

Cardio-controversy: Added value through CAD imaging?

ESC Congress, Paris: Two key strands in the ‘Controversies in imaging coronary artery disease’ session at the congress will examine the pros and cons of imaging use for coronary artery disease risk stratification in asymptomatic patients; the second strand will focus on whether CT angiography should be the first choice for imaging coronary artery disease in patients with stable chest pain.…

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Cardiology & radiology

AI opens up boundaries between medical disciplines

Uwe Joseph Schoepf, Professor for Radiology, Cardiology and Paediatrics and Director of the Department of Cardiovascular Imaging at the Medical University of South Carolina, discusses areas of application for AI-based radiology. The cardiothoracic imaging expert and his team were largely involved in the development and early clinical trials of the Siemens AI-Rad Companion Chest CT, a software…

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100th birthday of Sir Godfrey Newbold Hounsfield

The legacy of the man who pioneered computed tomography

On the centenary of his birth, Mark Nicholls reflects on the life and legacy of Nobel laureate Sir Godfrey Newbold Hounsfield, the man who pioneered computed tomography. It was a discovery that came from a moment of inspiration during a country walking holiday; the idea that one could determine what was inside a box by taking X-ray readings at all angles around the object. From that, Sir Godfrey…

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Medical components

New CT tubes deliver excellent performance and support patient throughput

Dunlee, a leading provider of CT, X-ray, MR, and 3D-printed tungsten products for the OEM market and CT tubes for the replacement market, continues to add to its wide CT tube portfolio with the introduction of the CT5000 mid-level CT tube and the CTR1600 series entry-level CT tubes. These tubes are manufactured to Dunlee’s exacting standards and boast excellent performance in their market…

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Advanced imaging

First CT scanner with AI installed in Belgium

Canon Medical has installed the Aquilion One Genesis, one of the first CT scanners with AI functionality in Europe, in Aalst’s General City Hospital, making it the first hospital in Belgium to boast AiCE technology. Canon Medical has named its AI application in the Aquilion One Genesis ‘AiCE’, which stands for ‘Advanced Intelligent Clear-IQ Engine’. AiCE is the first Deep Learning…

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