Magnetic Resonance Imaging (MRI)

MRI creates images from the magnetic resonance created in hydrogen atoms when they are polarized and an electromagnetic pulse is used to knock them off axis. This section includes MR analysis software, MRI scanners, gadolinium contrast agents and related magnetic resonance imaging accessories.

Nearly 40 MRIdian-focused presentations will be part of the ASTRO Scientific Sessions
News | Magnetic Resonance Imaging (MRI) | October 26, 2020
October 26, 2020 — ViewRay, Inc. announced that the company's MRIdian Linac MRI-guided radiation therapy system will be...
This illustration show the complexity of the data obtained from one single patient with moderate/severe traumatic brain injury. Different imaging approaches and techniques have their own unique sensitivity in assessing different aspects of neuroanatomy and neuropathology. What can be seen on images also changes with time since injury. Data from comprehensive clinical and functional assessments using a range of other tools is also important for evaluating patient outcome. Through data harmonization and large

This illustration show the complexity of the data obtained from one single patient with moderate/severe traumatic brain injury. Different imaging approaches and techniques have their own unique sensitivity in assessing different aspects of neuroanatomy and neuropathology. What can be seen on images also changes with time since injury. Data from comprehensive clinical and functional assessments using a range of other tools is also important for evaluating patient outcome. Through data harmonization and large-scale analyses of data combined across multiple research sites, the ENIGMA Brain Injury will develop and test methods and procedures for making sense of the complexity in this data. Images courtesy of Olsen et al., Brain Imaging and Behavior, 2020

News | Magnetic Resonance Imaging (MRI) | October 23, 2020
October 23, 2020 — Traumatic brain injury is a major cause of disability and can have major consequences for patients...
The fMRI hyperscanning environment.

(A) The fMRI hyperscanning environment. The clinician (1) and patient (2) were positioned in two different 3T MRI scanners. An audio-video link enabled online communication between the two scanners (3), and video images were used to extract frame-by-frame facial expression metrics. During simultaneous acquisition of blood oxygen level–dependent (BOLD)–fMRI data, the clinician used a button box (4) to apply electroacupuncture (EA) treatment (real/sham, double-blind) to the patient (5) to alleviate evoked pressure pain to the leg (6; Hokanson cuff inflation). Pain and affect related to the treatment were rated after each trial. (B) Study overview. After an initial behavioral visit, each individual participated in a Clinical-Interaction (hyperscan preceded by a clinical intake) and No-Interaction condition (hyperscan without a preceding intake), in a counterbalanced order, with two different partners. (C) Experimental protocol. Each hyperscan was composed of 12 repeated trials (four verum EA, four sham EA, and four no treatment) in a pseudo-randomized order. After a resting period (far left), both participants were shown a visual cue to indicate whether the next pain stimulus would be treated (green frame) or not treated (red frame) by the clinician. These cues prompted clinicians prepare to either apply or not apply treatment while evoking corresponding anticipation for the patient. Following the anticipation cue, moderately painful pressure pain was applied to the patient’s left leg, while the clinician applied or did not apply treatment, respectively. After another resting period, participants rated pain (patients), vicarious pain (clinicians), and affect (both) using a visual analog scale (VAS).

News | Clinical Trials | October 22, 2020
October 22, 2020 — The potential impact of the patient-clinician relationship on a patient's response to treatment is...
The FDA clearance, Quantib’s 6th to date, marks the first time a comprehensive AI prostate solution will be available to radiologists in the United States
News | Prostate Cancer | October 21, 2020
October 21, 2020 — Quantib, a market leader in artificial intelligence solutions for radiology, today announced that it...
Lesion was originally reported as indeterminate enhancing mass, and outside report recommended biopsy. Classic features of benign hemangioma are shown. Error was attributed to faulty reasoning. A, Axial MR image obtained 5 minutes after contrast agent administration shows peripheral nodular discontinuous enhancement. B, Axial MR image obtained 10 minutes after contrast agent administration shows centripetal progression of enhancement (arrow). C, Axial fast imaging employing steady-state acquisition (FIESTA)

Lesion was originally reported as indeterminate enhancing mass, and outside report recommended biopsy. Classic features of benign hemangioma are shown. Error was attributed to faulty reasoning. A, Axial MR image obtained 5 minutes after contrast agent administration shows peripheral nodular discontinuous enhancement. B, Axial MR image obtained 10 minutes after contrast agent administration shows centripetal progression of enhancement (arrow). C, Axial fast imaging employing steady-state acquisition (FIESTA) MR image shows lesion is homogeneously hyperintense compared with liver parenchyma. Image courtesy of American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

News | Magnetic Resonance Imaging (MRI) | October 21, 2020
October 21, 2020 — According to an article in ARRS' American Journal of Roentgenology (AJR), secondary interpretations...
Flowchart of patient inclusion and exclusion.

Figure 1. Flowchart of patient inclusion and exclusion.

News | Coronavirus (COVID-19) | October 20, 2020
October 20, 2020 — A new multi-institutional study published in the journal Radiology identifies patterns in abnormal...
Ezra, a NY-based startup transforming early cancer screening using magnetic resonance imaging (MRI), announced that it has received FDA 510(k) premarket authorization for its Artificial Intelligence, designed to decrease the cost of MRI-based cancer screening, assisting radiologists in their analysis of prostate MRI scans. It is the first prostate AI to be cleared by the FDA.
News | Artificial Intelligence | October 20, 2020
October 20, 2020 — Ezra, a NY-based startup transforming early cancer screening using magnetic resonance imaging (MRI...
Lesion was originally reported as indeterminate enhancing mass, and outside report recommended biopsy. Classic features of benign hemangioma are shown. Error was attributed to faulty reasoning. A, Axial MR image obtained 5 minutes after contrast agent administration shows peripheral nodular discontinuous enhancement. B, Axial MR image obtained 10 minutes after contrast agent administration shows centripetal progression of enhancement (arrow). C, Axial fast imaging employing steady-state acquisition (FIESTA)

56-Year-Old Woman With Benign Hemangioma: Lesion was originally reported as indeterminate enhancing mass, and outside report recommended biopsy. Classic features of benign hemangioma are shown. Error was attributed to faulty reasoning. A, Axial MR image obtained 5 minutes after contrast agent administration shows peripheral nodular discontinuous enhancement. B, Axial MR image obtained 10 minutes after contrast agent administration shows centripetal progression of enhancement (arrow). C, Axial fast imaging employing steady-state acquisition (FIESTA) MR image shows lesion is homogeneously hyperintense compared with liver parenchyma.

News | Magnetic Resonance Imaging (MRI) | October 16, 2020
October 16, 2020 — According to an article in ARRS’ American Journal of Roentgenology (AJR), secondary interpretations...
Videos | MRI Breast | October 14, 2020
Professor Christiane Kuhl, M.D., director of radiology, University Hospital Aachen, Germany, explains how breast...
The Magnetom World is the community of Siemens Healthcare MR users worldwide, providing you with relevant clinical information. In this supplement you will find application tips and protocols to optimize your daily work. Lectures and presentations from experts in the field will allow you to be exposed to new ideas and alterntive clinical approaches.
Sponsored Content | News | Magnetic Resonance Imaging (MRI) | October 13, 2020
The Magnetom World is the community of Siemens Healthcare magnetic resonance imaging (MRI) users worldwide, providing...
The Galan 3T and Orian 1.5T magnetic resonance imaging (MRI) platforms, both with Advanced intelligent Clear-IQ Engine (AiCE) Deep Learning Reconstruction (DLR) and Compressed SPEEDER, will be featured at RSNA 2020.

Vantage Galan 3T

News | RSNA | October 02, 2020
October 2, 2020 — The Galan 3T and Orian 1.5T magnetic resonance imaging (MRI) platforms, both with Advanced...
These MRI scans show diffuse white matter abnormality (DWMA). The top three panels display raw MRI images from very preterm infants born at 27 weeks (left), 26 weeks (center) and 31 weeks (right) gestation.

These MRI scans show diffuse white matter abnormality (DWMA). The top three panels display raw MRI images from very preterm infants born at 27 weeks (left), 26 weeks (center) and 31 weeks (right) gestation. Higher signal intensity can be seen in the central white matter, particularly for the 31-week gestation infant. The bottom panels display the corresponding slices with objectively segmented DWMA in yellow. The 27-week infant (left) was diagnosed with mild DWMA, the 26-week infant (center) was diagnosed with moderate DWMA, and the 31-week infant had severe DWMA. Image courtesy of Cincinnati Children's and Nature Scientific Reports

News | Magnetic Resonance Imaging (MRI) | October 01, 2020
October 1, 2020 — As many as 70% of very premature infants (born earlier than 32 weeks gestation) show signs of white...
Siemens Healthineers and WakeMed Health & Hospitals have established a 10-year, patient-focused, Value Partnership to innovate care delivery and improve patient outcomes through robotics initiatives, advanced imaging capabilities and artificial intelligence, along with provider and staff training.
News | Radiology Business | September 30, 2020
September 30, 2020 — Siemens Healthineers and WakeMed Health & Hospitals have established a 10-year, patient-...
The cartilage in this MRI scan of a knee is colorized to show greater contrast between shades of gray.

The cartilage in this MRI scan of a knee is colorized to show greater contrast between shades of gray. Image courtesy of Kundu et al. (2020) PNAS

News | Artificial Intelligence | September 22, 2020
September 22, 2020 — Researchers at the University of Pittsburgh School of Medicine and Carnegie Mellon University...
A new report, Magnetic Resonance Imaging Equipment Market Size, Share & Industry Analysis, conducted by Fortune Business Insights, states that the magnetic resonance imaging (MRI) equipment market reached $7.24 billion in 2019 and is projected to reach $11.36 billion by 2027

Image courtesy of Siemens Healthineers

Feature | Magnetic Resonance Imaging (MRI) | September 21, 2020 | By Melinda Taschetta-Millane
A new report, Magnetic Resonance Imaging Equipment Market Size, Share & Industry Analysis, conducted by Fortune...
Figure 1. Doppler flows in subpleural consolidation shows smoothly dilated branching arteries

Figure 1. Doppler flows in subpleural consolidation shows smoothly dilated branching arteries 

Feature | Radiology Imaging | September 17, 2020 | By Robert Bard, M.D. PC, DABR, FASLM
COVID-19 is routinely studied using lung ultrasound and quantifying the disease by the “white lung” appearance of...
 A cardiac MRI is effective in identifying inflammation of the heart muscle in athletes and can help determine when those who have recovered from COVID-19 can safely return to play in competitive sports, according to a new study by researchers at The Ohio State University Wexner Medical Center.

Getty Images

News | Cardiac Imaging | September 14, 2020
September 14, 2020 — A cardiac MRI is effective in identifying inflammation of the heart muscle in athletes and can...
All intensive care unit equipment, including ventilators, pumps, and monitoring devices, as well as the point-of-care magnetic resonance image operator and bedside nurse, remained in the room. All equipment was operational during scanning.

All intensive care unit equipment, including ventilators, pumps, and monitoring devices, as well as the point-of-care magnetic resonance image operator and bedside nurse, remained in the room. All equipment was operational during scanning. Image courtesy of JAMA Neurology

News | Magnetic Resonance Imaging (MRI) | September 11, 2020
September 11, 2020 — A portable, low-field magnetic resonance imaging (MRI) device can be safely used at bedside in...
Six months after deployment, the no-show rate of the predictive model was 15.9%, compared with 19.3% in the preceding 12-month preintervention period — corresponding to a 17.2% improvement from the baseline no-show rate (p < 0.0001). The no-show rates of contactable and noncontactable patients in the group at high risk of appointment no-shows as predicted by the model were 17.5% and 40.3%, respectively (p < 0.0001).

Weekly outpatient MRI appointment no-show rates for 1 year before (19.3%) and 6 months after (15.9%) implementation of intervention measures in March 2019, as guided by XGBoost prediction model. Squares denote data points. Courtesy of the  American Roentgen Ray Society (ARRS), American Journal of Roentgenology (AJR)

News | Artificial Intelligence | September 10, 2020
September 10, 2020 — According to ARRS’ American Journal of Roentgenology (AJR), artificial intelligence (AI)...
Vantage Galan with Advanced intelligent Clear-IQ Engine (AiCE) provides high-quality images and fast exam times

Coronal orbit images: Left original and right with AiCE.

News | Magnetic Resonance Imaging (MRI) | September 09, 2020
September 9, 2020 — Clinicians at the University of California, San Diego Health now have access to Canon Medical...