Computed Tomography (CT)

Cardiac computed tomography CT systems use a series of X-ray images to create an image volume dataset that can be sliced or manipulated on any plane using advanced visualization software. This channel includes content on CT scanners, CT contrast agents, CT angiography (CTA and CCTA), CT perfusion, spectral CT (also called dual souce or dual energy CT), and interative image reconstruction software that can reduce dose and make lower-quality CT images diagnostic.

Figure 4 for the study. Images of a 65-year-old man (patient 6). (a) Cardiac MRI perfusion shows perfusion deficit of anterior/anterolateral wall attributed to left anterior descending artery/left circumflex artery (*). (b) CT coronary angiography. (c) Coronary angiography, left anterior oblique projection with caudal angulation. (d) Three-dimensional image fusion helped refine diagnosis: perfusion deficits (*) were most likely caused by narrow first diagonal branch and its first, stented side branch (arrow

Figure 4 for the study. Images of a 65-year-old man (patient 6). (a) Cardiac MRI perfusion shows perfusion deficit of anterior/anterolateral wall attributed to left anterior descending artery/left circumflex artery (*). (b) CT coronary angiography. (c) Coronary angiography, left anterior oblique projection with caudal angulation. (d) Three-dimensional image fusion helped refine diagnosis: perfusion deficits (*) were most likely caused by narrow first diagonal branch and its first, stented side branch (arrowhead). Retrospectively, denoted lesion could also be found at CT coronary angiography and coronary angiography (arrowheads in b and c, respectively). CT FFR = CT-derived fractional flow reserve, LGE = late gadolinium enhancement. Image courtesy of RSNA, Radiology.

News | Cardiac Imaging | May 04, 2020
May 4, 2020 – A new technique that combines computed tomography (CT) and magnetic resonance imaging MRI can bolster...
#COVID19 #Coronavirus #2019nCoV #Wuhanvirus #SARScov2 Pulmonary CT angiography of a 68 year old male. The CT scan was obtained 10 days after the onset of COVID-19 symptoms and on the day the patient was transferred to the intensive care unit.

Figure 2: Pulmonary CT angiography of a 68 year old male. The CT scan was obtained 10 days after the onset of COVID-19 symptoms and on the day the patient was transferred to the intensive care unit. Axial CT images (lung windows) (a,b) show peripheral ground-glass opacities (arrow) associated with areas of consolidation in dependent portions of the lung (arrowheads). Interlobular reticulations, bronchiectasis (black arrow) and lung architectural distortion are present. Involvement of the lung volume was estimated to be between 25% and 50%. Coronal CT reformations (mediastinum windows) (c,d) show bilateral lobar and segmental pulmonary embolism (black arrows). Courtesy of RSNA

News | Coronavirus (COVID-19) | April 30, 2020
April 23, 2020 — A special report published in the journal Radiology outlines prevention, diagnosis and treatment of...
Videos | Coronavirus (COVID-19) | April 18, 2020
Stephen Bloom, M.D., FASNC, director of nonivasive cardiology (cardiac CT, nuclear cardiology and echocardiography) at...
Cardiac Imaging Best Practices During the COVID-19 Pandemic. Cardiology imaging societies issue guidelines on how to handle patient imaging under virus precautions. #COVID19 #SARScov2
Feature | Coronavirus (COVID-19) | April 18, 2020 | Dave Fornell, Editor
Cases of acute cardiovascular disease and cardiac complications caused by COVID-19 require cardiovascular imaging...
Videos | Coronavirus (COVID-19) | April 04, 2020
Hicham Skali, M.D., a staff cardiologist and member of the Non-invasive Cardiovascular Imaging Program at Brigham and...
An example of a coronary computed tomography angiography (CCTA) exam. The CIAO study looked at patients who have a problem of blood flow limitation and chest pain symptoms in the absence of a 50 percent or more artery narrowing, known as ischemia with no obstructive CAD, or INOCA.

An example of a coronary computed tomography angiography (CCTA) exam. The CIAO study looked at patients who have a problem of blood flow limitation and chest pain symptoms in the absence of a 50 percent or more artery narrowing, known as ischemia with no obstructive CAD, or INOCA.

News | Cardiac Imaging | April 03, 2020
April 3, 2020 — Patients who experience chest pain and have abnormal results on a cardiac stress test but who do not...
Recommended best practices for nuclear imaging departments under the COVIF-19 pandemic have been issues by the ASNC and SNMMI. #COVID19 #ASNC #SNMMI #Coronavirus #SARScov2
News | Coronavirus (COVID-19) | April 03, 2020 | Dave Fornell, Editor
April 3, 2020 — A new guidance document on best practices to maintain safety and minimize contamination in nuclear...
An example of Philips’ TrueVue technology, which offers photo-realistic rendering and the ability to change the location of the lighting source on 3-D ultrasound images. In this example of two Amplazer transcatheter septal occluder devices in the heart, the operator demonstrating the product was able to push the lighting source behind the devices into the other chamber of the heart. This illuminated a hole that was still present that the occluders did not seal. Photo by Dave Fornell

An example of Philips’ TrueVue technology, which offers photo-realistic rendering and the ability to change the location of the lighting source on 3-D ultrasound images. In this example of two Amplazer transcatheter septal occluder devices in the heart, the operator demonstrating the product was able to push the lighting source behind the devices into the other chamber of the heart. This illuminated a hole that was still present that the occluders did not seal. Photo by Dave Fornell

Feature | Interventional Radiology | April 03, 2020 | By Katie Caron
A new year — and decade — offers the opportunity to reflect on the advancements and challenges of years gone by and...
Videos | FFR Technologies | March 26, 2020
James Udelson, M.D., chief of the division of cardiology, Tufts Medical Center, explains how cardiac computed...
Two examples of CT myocardial perfusion (CTP) imaging assessment software. Canon is on the left and GE Healthcare is on the right. Both of these technologies have been around for a few years, but there have been an increasing amount of clinical data from studies showing the accuracy of the technology compared to nuclear imaging, the current stand of care for myocardial perfusion imaging, and cardiac MRI. #SCCT #perfusionimaging 

Two examples of CT myocardial perfusion (CTP) imaging assessment software. Canon is on the left and GE Healthcare is on the right. Both of these technologies have been around for a few years, but there have been an increasing amount of clinical data from studies showing the accuracy of the technology compared to nuclear imaging, the current stand of care for myocardial perfusion imaging, and cardiac MRI.

News | CT Angiography (CTA) | March 16, 2020
March 16, 2020 — The Society of Cardiovascular Computed Tomography (SCCT) released a new expert consensus document on...
A 3-D CT reconstruction of an anomalous right coronary artery (RCA) can be seen arising from the left sinus of valsalva in a short-axis equivalent view. ASE issues New Guidelines for Multimodality Imaging of Congenital Coronary Anomalies

 
A 3-D CT reconstruction of an anomalous right coronary artery (RCA) can be seen arising from the left sinus of valsalva in a short-axis equivalent view. This is one of many images included in the new ASE guidelines to illustrate anatomical coronary artery variations.

News | March 05, 2020
March 5, 2020 — Experts in the medical imaging community have developed a new, landmark consensus document to optimize...
AI vendor Infravision's InferRead CT Pneumonia software uses artificial intelligence-assisted diagnosis tp improve the overall efficiency of the radiology department. It is being delayed in China as a high sensitivity detection aid for novel coronavirus pneumonia (COVID-19). #COVID-19 #COVID19 #Coronavirus #2019-nCoV

AI vendor Infravision's InferRead CT Pneumonia software uses artificial intelligence-assisted diagnosis tp improve the overall efficiency of the radiology department. It is being delayed in China as a high sensitivity detection aid for novel coronavirus pneumonia (COVID-19).

Feature | Coronavirus (COVID-19) | February 28, 2020
February 28, 2020 — New healthcare technologies are being implemented in the fight against the novel coronavirus (COVID...

GE Healthcare partnered with the AI developer Dia to provide an artificial intelligence algorithm to auto contour and calculate cardiac ejection fraction (EF). The app is now available on the GE Vscan pocket, point-of-care ultrasound (POCUS) system, as seen here displayed at RSNA 2019. Watch a VIDEO demo from RSNA.

Feature | Artificial Intelligence | February 11, 2020 | Sanjay Parekh, Ph.D. 
February 7, 2020 – At the 2019 Radiological Society of North America (RSNA) meeting in December, there was a record...
The researchers used high resolution cross-sectional imaging with CT or MRI to assess 225 men with abdominal aortic aneurysm. Follow-up lasted, on average, more than three years.  Slightly more than half of patients had an intraluminal thrombus. The aneurysms of those with intraluminal thrombus were larger at baseline and grew by a rate of 2 mm per year, twice as fast as the 1 mm per year growth rate in people without intraluminal thrombus.
News | Endovascular Aortic Repair | January 29, 2020
January 29, 2020 – The presence of a blood clot on the wall of the aorta in people with abdominal aortic aneurysms (AAA...
This is an example of artificial intelligence automation for cardiac MRI using an AI app from TeraRecon's Envoy AI marketplace. The GE MRI image has bee countoured, anatomy labeled and all quantification automated by the AI, greatly reducing post-processing time. See this and other new AI imaging technologies from the 2019 RSNA meeting.

This is an example of artificial intelligence automation for cardiac MRI using an AI app from TeraRecon's Envoy AI marketplace. The GE MRI image has been countoured, anatomy labeled and all quantification automated by the AI, greatly reducing post-processing time. See this and other new AI imaging technologies from the 2019 RSNA meeting.

Blog | January 24, 2020
The key question I am always asked at cardiology conferences is what are the trends and interesting new technologies I...