ARRS First and oldest radiology society in the United States.
The American Roentgen Ray Society, founded in 1900, is the first and oldest radiology society in the United States. The society has been a forum for progress in radiology since shortly after the discovery of the X-ray and is dedicated to the goal of the advancement of medicine through the science of radiology and its allied sciences. The goal of the ARRS is maintained through an annual scientific and educational meeting, through publication of the American Journal of Roentgenology, and through other educational symposia. The Annual Meeting consists of instructional courses, scientific paper presentations, a symposium, a new issues forum, scientific exhibits, and commercial exhibits. A special categorical course and annual Case-Based Review Course is also offered. Category 1 CME credits are available on an hour-for-hour basis. All members of the Society may attend the Annual Meeting with discounted payment of the general registration fee. The monthly American Journal of Roentgenology (AJR) is a highly respected peer-reviewed journal with a worldwide circulation of more than 25,000. For more than 100 years, the AJR has been recognized as one of the best specialty journals in the world. The quarterly ARRS InPractice magazine keeps members informed of Annual Meeting plans and general Society information. The Society invests in the future of radiology by awarding scholarships and awards to deserving individuals through the Roentgen Fund.
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Can you determine the next step in management for this 65-year-old woman undergoing stereotactic biopsy?
01/28/2020
ARRS Case of the Week

Can you determine the next step in management for this 65-year-old woman undergoing stereotactic biopsy?

Lateromedial mammogram shows faint calcifications (circle) from an upright stereotactic biopsy. The z coordinate is less than 10°.

This study compares image quality and clinically significant lesion detection on DLR and IR images of submillisievert ch...
01/26/2020
Image Quality and Lesion Detection on Deep Learning Reconstruction and Iterative Reconstruction of Submillisievert Chest and Abdominal CT : American Journal of Roentgenology : Ahead of Print (AJR)

This study compares image quality and clinically significant lesion detection on DLR and IR images of submillisievert chest and abdominopelvic CT.

OBJECTIVE. The objective of this study was to compare image quality and clinically significant lesion detection on deep learning reconstruction (DLR) and iterative reconstruction (IR) images of sub...

This study validates an e-learning, concept featuring gamification elements, rapid case reading, and instant feedback.
01/25/2020
Gamification of Electronic Learning in Radiology Education to Improve Diagnostic Confidence and Reduce Error Rates : American Journal of Roentgenology : Ahead of Print (AJR)

This study validates an e-learning, concept featuring gamification elements, rapid case reading, and instant feedback.

OBJECTIVE. The purpose of this study is to validate an electronic learning, or e-learning, concept featuring gamification elements, rapid case reading, and instant feedback. SUBJECTS AND METHODS. A...

This study explores whether a quantitative framework can be used to sonographically differentiate benign and malignant t...
01/24/2020
Quantitative Framework for Risk Stratification of Thyroid Nodules With Ultrasound: A Step Toward Automated Triage of Thyroid Cancer : American Journal of Roentgenology : Ahead of Print (AJR)

This study explores whether a quantitative framework can be used to sonographically differentiate benign and malignant thyroid nodules at a level comparable to that of experts.

OBJECTIVE. The purpose of this study was to explore whether a quantitative framework can be used to sonographically differentiate benign and malignant thyroid nodules at a level comparable to that ...

This year's Annual Meeting features more than 150 sessions to choose from, including important topics that every radiolo...
01/24/2020
Featured Events

This year's Annual Meeting features more than 150 sessions to choose from, including important topics that every radiologist should be aware of in 2020.

This three-day Categorical Course will provide practice-based strategies for turning errors into opportunities in both acute and routine imaging settings. Renowned faculty will discuss the role of data and technology, proper use of standardized reports, and implementing peer learning to reduce error...

Explore improved methods that lead to better outcomes, measured through biopsy metrics such as complication rate, cancer...
01/23/2020
Minimally Invasive Breast Procedures: Practical Tips & Tricks — AJR Live

Explore improved methods that lead to better outcomes, measured through biopsy metrics such as complication rate, cancer detection rate, and PPV3.

AJR Live Webinars feature leading experts discussing some of AJR’s most controversial, cutting-edge articles—broadcasted each month live, online, with CME.

What is the correct diagnosis for this patient in the emergency department?
01/20/2020
ARRS Case of the Week

What is the correct diagnosis for this patient in the emergency department?

61-year-old man in emergency department who has National Institutes of Health Stroke Scale score of 21 and is undergoing recanalization by mechanical thrombectomy.

01/19/2020
The future of AI in Radiology

Richard Duszak on why radiologists need to take leadership when it comes to artificial intelligence and machine learning in radiology.

Knowledge of the common patterns of prostate cancer recurrence, in addition to what other neoplasms can show uptake, is ...
01/19/2020
Extraprostatic Uptake of 18F-Fluciclovine: Differentiation of Nonprostatic Neoplasms From Metastatic Prostate Cancer : American Journal of Roentgenology : Ahead of Print (AJR)

Knowledge of the common patterns of prostate cancer recurrence, in addition to what other neoplasms can show uptake, is critical for accurate study interpretation.

OBJECTIVE. Fluciclovine is a synthetic radiolabeled amino acid analog used for imaging of biochemical recurrent prostate cancer. Uptake of fluciclovine is mediated by several amino acid transporter...

This study evaluates quantitative parameters in 18F-FDG PET/CT in terms of correlation with histologic grade and overall...
01/18/2020
Prognostic Value of Quantitative Parameters of 18F-FDG PET/CT for Patients With Angiosarcoma : American Journal of Roentgenology : Ahead of Print (AJR)

This study evaluates quantitative parameters in 18F-FDG PET/CT in terms of correlation with histologic grade and overall survival in patients with angiosarcoma.

OBJECTIVE. The purpose of this study was to evaluate quantitative parameters in 18F-FDG PET/CT in terms of correlation with histologic grade and overall survival in patients with angiosarcoma. MATE...

When planning and preparing for hospital-based medical care during disasters and mass casualties, radiologists must act ...
01/16/2020
Mass Casualty Incidents: An Introduction for Imagers

When planning and preparing for hospital-based medical care during disasters and mass casualties, radiologists must act as subject matter experts on the crucial role imaging plays.

The events of the Columbine school shooting in 1999, the attacks on September 11, 2001, and the anthrax mailings the following week underscored the need for health care to be prepared to respond to acts of mass violence and bioterrorism.

This study assesses the prevalence of anterior hip dislocation and highlights the distinctive imaging features of anteri...
01/16/2020
Understanding a Rare Injury: An Observational Study of Anterior-Superior Hip Dislocations : American Journal of Roentgenology : Ahead of Print (AJR)

This study assesses the prevalence of anterior hip dislocation and highlights the distinctive imaging features of anterior-superior hip dislocation.

OBJECTIVE. The goals of this study were to assess the prevalence of anterior hip dislocation and to highlight the distinctive imaging features of anterior-superior hip dislocation. MATERIALS AND ME...

There are several key aspects of gender that radiologists should be aware of in daily practice.
01/15/2020
Gender Affirmation Imaging Revisited

There are several key aspects of gender that radiologists should be aware of in daily practice.

How often does gender or sex come up in your daily practice? In a publication or article you read? In your daily interactions with your family or colleagues?

This study uses 2D ultrasound SWE to define expected ranges for liver shear wave speed and shear wave dispersion in chil...
01/14/2020
Liver Shear Wave Speed and Other Quantitative Ultrasound Measures of Liver Parenchyma: Prospective Evaluation in Healthy Children and Adults : American Journal of Roentgenology : Ahead of Print (AJR)

This study uses 2D ultrasound SWE to define expected ranges for liver shear wave speed and shear wave dispersion in children and adults without a known history of liver disease.

OBJECTIVE. The purpose of this study was to use 2D ultrasound shear wave elastography (SWE) to define expected ranges for liver shear wave speed and shear wave dispersion in children and adults wit...

When Thomas H. Berquist logs off his iPad this summer, his 12-year tenure as the 12th editor in chief of AJR will capsto...
01/14/2020
White Horse, Yellow Journal: Berquist Bids Adieu to AJR

When Thomas H. Berquist logs off his iPad this summer, his 12-year tenure as the 12th editor in chief of AJR will capstone a period of unprecedented growth.

When Thomas H. Berquist logs off his iPad this summer, his 12-year tenure as the 12th editor in chief of the American Journal of Roentgenology (AJR) will capstone a period of unprecedented growth for the 113-year-old publication. Truly the end of an era, only two other men will have occupied the AJR...

This study hypothesized that elevated MRI PSAD is similarly associated with increased risk of progression on subsequent ...
01/13/2020
MRI-Based Prostate-Specific Antigen Density Predicts Gleason Score Upgrade in an Active Surveillance Cohort : American Journal of Roentgenology : Ahead of Print (AJR)

This study hypothesized that elevated MRI PSAD is similarly associated with increased risk of progression on subsequent biopsy.

OBJECTIVE. Elevated prostate-specific antigen density (PSAD) based on transrectal ultrasound (TRUS) measurements has been shown to be strongly associated with clinically significant disease and to ...

Can you diagnose this patient with fevers and night sweats?
01/13/2020
ARRS Case of the Week

Can you diagnose this patient with fevers and night sweats?

Color Doppler ultrasound image (A) shows two heterogeneous masses (arrows) in the right hepatic lobe that do not compress or displace the right hepatic vein. The masses have solid composition despite peripheral low echogenicity. Axial delayed contrast-enhanced CT image through the hepatic dome (B) s...

This study compares the image quality, including artifacts, of a T1-weighted GRE MRI sequence with a radial sampling app...
01/12/2020
Advantages of a T1-Weighted Gradient-Recalled Echo (GRE) Sequence With a Radial 3D Sampling Approach Versus 2D Turbo Spin-Echo and Cartesian 3D GRE Sequences in Head and Neck MRI : American Journal of Roentgenology : Ahead of Print (AJR)

This study compares the image quality, including artifacts, of a T1-weighted GRE MRI sequence with a radial sampling approach to the that of both 2D TSE and cartesian 3D GRE MRI sequences performed in the head and neck region.

OBJECTIVE. The purpose of this study is to compare the image quality, including artifacts, of a T1-weighted gradient-recalled echo (GRE) MRI sequence with a radial sampling approach to the that of ...

This study creates, develops, and externally validates a nomogram that predicts pathologic upgrade in patients on active...
01/11/2020
Development and External Validation of Multiparametric MRI-Derived Nomogram to Predict Risk of Pathologic Upgrade in Patients on Active Surveillance for Prostate Cancer : American Journal of Roentgenology : Ahead of Print (AJR)

This study creates, develops, and externally validates a nomogram that predicts pathologic upgrade in patients on active surveillance for prostate cancer using commonly available clinical and mpMRI factors.

OBJECTIVE. The aim of this study was to create, develop, and externally validate a nomogram that predicts pathologic upgrade in patients on active surveillance (AS) for prostate cancer using common...

This study evaluated the utility of a deep learning method for determining whether a small solid renal mass was benign o...
01/10/2020
Differentiation of Small (≤ 4 cm) Renal Masses on Multiphase Contrast-Enhanced CT by Deep Learning : American Journal of Roentgenology : Ahead of Print (AJR)

This study evaluated the utility of a deep learning method for determining whether a small solid renal mass was benign or malignant on multiphase contrast-enhanced CT.

OBJECTIVE. This study evaluated the utility of a deep learning method for determining whether a small (≤ 4 cm) solid renal mass was benign or malignant on multiphase contrast-enhanced CT. MATERIALS...

AJR reviewers will discuss the review process and what they seek in a high-quality manuscript in this webinar next week.
01/10/2020
Peering Into Peer Review—AJR Live

AJR reviewers will discuss the review process and what they seek in a high-quality manuscript in this webinar next week.

AJR Live Webinars feature leading experts discussing some of AJR’s most controversial, cutting-edge articles—broadcasted each month live, online, with CME.

In early stages of development for MRI, Sir Peter Mansfield used this cardboard model to show how the scanner would work...
01/09/2020

In early stages of development for MRI, Sir Peter Mansfield used this cardboard model to show how the scanner would work.

Photo credit: University of Nottingham

Recent advancements have elevated radiology's role in addressing this increasingly common and important disorder.
01/08/2020
State of the Art Imaging for Chronic Liver Disease

Recent advancements have elevated radiology's role in addressing this increasingly common and important disorder.

Chronic liver disease is an increasingly common and important disorder, now afflicting more than 25% of the world’s population. Regardless of its underlying cause, chronic liver disease can progress to cirrhosis, development of liver cancer, and liver-related death. Recent advances in imaging know...

Knowledge about vaping-associated lung injuries is changing every day, and it is imperative that diagnostic radiologists...
01/07/2020
What Diagnostic Radiologists Need to Know About Vaping-Associated Lung Injuries

Knowledge about vaping-associated lung injuries is changing every day, and it is imperative that diagnostic radiologists have a general understanding of what vaping is, how it looks on imaging, and what we know so far.

The latter half of 2019 saw the identification of an entirely new respiratory illness and introduction of a new diagnosis— e-cigarette, or vaping, product use associated lung injury (EVALI)—into the medical lexicon. Based on current understanding, EVALI is an acute or subacute respiratory illnes...

What is the correct diagnosis for this 34-year-old woman with atypical chest pain?
01/06/2020
ARRS Case of the Week

What is the correct diagnosis for this 34-year-old woman with atypical chest pain?

Posteroanterior (A) and lateral (B) chest radiographs show widening of the low right paratracheal stripe (A) and leftward indentation (A) and mild narrowing (B) of the tracheal air column at this level.

01/05/2020
Redefining Success

ARRS President Ruth Carlos discusses why she wants to demystify failure and redefine success in practice.

This study investigates factors driving callback MRI and CT examinations and discerns opportunities for optimizing the p...
01/04/2020
Common Causes of Outpatient CT and MRI Callback Examinations: Opportunities for Improvement : American Journal of Roentgenology : Ahead of Print (AJR)

This study investigates factors driving callback MRI and CT examinations and discerns opportunities for optimizing the patient experience by reducing future callbacks.

OBJECTIVE. The purposes of this study were to investigate factors driving callback MRI and CT examinations and to discern opportunities for optimizing the patient experience by reducing future call...

Advanced ALK+ NSCLC has primary tumor imaging features and patterns of metastasis that are different from those of EGFR+...
01/02/2020
Imaging Features and Metastatic Patterns of Advanced ALK-Rearranged Non–Small Cell Lung Cancer : American Journal of Roentgenology : Ahead of Print (AJR)

Advanced ALK+ NSCLC has primary tumor imaging features and patterns of metastasis that are different from those of EGFR+ or EGFR−/ALK− wild type NSCLC at the time of initial presentation.

OBJECTIVE. ALK rearrangements are an established targetable oncogenic driver in non–small cell lung cancer (NSCLC). The goal of this study was to determine the imaging features of the primary tumor...

This study applies a new method for quantitatively assessing atrophied muscles by use of sonoelastography.
01/01/2020
Diagnosing Muscle Atrophy by Use of a Comprehensive Method of Assessing the Elastic Properties of Muscle During Passive Stretching : American Journal of Roentgenology : Ahead of Print (AJR)

This study applies a new method for quantitatively assessing atrophied muscles by use of sonoelastography.

OBJECTIVE. The purpose of this study was to apply a new method for quantitatively assessing atrophied muscles by use of sonoelastography. SUBJECTS AND METHODS. B-mode sonography and shear-wave elas...

Happy New Year!
01/01/2020

Happy New Year!

This study investigates the utility of FDG PET/CT for the preoperative staging of subsolid NSCLCs with a solid portion s...
12/31/2019
Utility of FDG PET/CT for Preoperative Staging of Non–Small Cell Lung Cancers Manifesting as Subsolid Nodules With a Solid Portion of 3 cm or Smaller : American Journal of Roentgenology : Ahead of Print (AJR)

This study investigates the utility of FDG PET/CT for the preoperative staging of subsolid NSCLCs with a solid portion size of 3 cm or smaller.

OBJECTIVE. The objective of our study was to investigate the utility of FDG PET/CT for the preoperative staging of subsolid non–small cell lung cancers (NSCLCs) with a solid portion size of 3 cm or...

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The American Roentgen Ray Society is North America’s oldest radiology society and a trusted source of practice-based education for radiologists. ARRS is committed to improving patient care and outcomes through the publication of the American Journal of Roentgenology, innovative web lectures and point-of-care CME.

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