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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This study assesses the use of cross-sectional imaging to qualitatively and quantitatively categorize trochlear dysplasi...
06/10/2020
Assessing Femoral Trochlear Morphologic Features on Cross-Sectional Imaging Before Trochleoplasty: Dejour Classification Versus Quantitative Measurement : American Journal of Roentgenology : Ahead of Print (AJR)

This study assesses the use of cross-sectional imaging to qualitatively and quantitatively categorize trochlear dysplasia as low grade (type A) or high grade (types B–D) according to the Dejour classification.

OBJECTIVE. The purpose of this study is to assess the use of cross-sectional imaging to qualitatively and quantitatively categorize trochlear dysplasia as low grade (type A) or high grade (types B–...

Submit your original abstract to be considered for presentation at the 2021 ARRS Annual Meeting.
06/10/2020
2021 ARRS Scientific Abstract Submission

Submit your original abstract to be considered for presentation at the 2021 ARRS Annual Meeting.

Submit your original abstract to be considered for presentation at the 2021 Annual Meeting —April 18–23, 2021. This is an excellent opportunity for radiologists across all subspecialties to participate in the ARRS Annual Meeting. Abstracts can be submitted for:

This study clarifies which imaging parameters of patellofemoral maltracking are associated with superolateral Hoffa fat ...
06/09/2020
Superolateral Hoffa Fat Pad Edema and Patellofemoral Maltracking: Systematic Review and Meta-Analysis : American Journal of Roentgenology : Ahead of Print (AJR)

This study clarifies which imaging parameters of patellofemoral maltracking are associated with superolateral Hoffa fat pad edema.

OBJECTIVE. The purpose of this study is to clarify which imaging parameters of patellofemoral maltracking are associated with superolateral Hoffa fat pad (SHFP) edema. MATERIALS AND METHODS. A syst...

Can you diagnose this man with McBurney point tenderness?
06/09/2020
Case: 40 YO Man with McBurney Point Tenderness

Can you diagnose this man with McBurney point tenderness?

AJR authors: Avielle Siegel, Paul J. Chang, David M. Paushter, Carla B. Harmath, and Abraham Dachman (Department of Radiology, University of Chicago); Zachary J. Jarou and J. Ben Arevalo (Emergency Department, University of Chicago)

This article investigates the medical condition of patients who received substantial CED in fluoroscopically guided inte...
06/08/2020
Radiation Effective Dose Above 100 mSv From Fluoroscopically Guided Intervention: Frequency and Patient Medical Condition : American Journal of Roentgenology : Ahead of Print (AJR)

This article investigates the medical condition of patients who received substantial CED in fluoroscopically guided interventional procedures.

OBJECTIVE. The purpose of this article was to investigate the medical condition of patients who received substantial cumulative effective dose (CED) in fluoroscopically guided interventional (FGI) ...

The COVID-19 epidemic has thrown into sharp relief the inequities that remain pervasive in America’s health care system ...
06/08/2020
ARRS Statement on Healthcare and Racial Inequities - ARRS InPractice

The COVID-19 epidemic has thrown into sharp relief the inequities that remain pervasive in America’s health care system for people of color—particularly African Americans.

The COVID-19 epidemic has thrown into sharp relief the inequities that remain pervasive in America’s health care system for people of color—particularly African Americans.

Save 20% on ALL Online Courses with coupon code JUNE20—Now through the end of the month!
06/06/2020
ARRS Online Courses

Save 20% on ALL Online Courses with coupon code JUNE20—Now through the end of the month!

Learn Online and On Demand ARRS has more Online Courses than ever—featuring lectures from leading experts across the spectrum of radiology. View all of our high-quality Online Courses below.

This open-access study evaluates the frequency and location of clumpy artifacts, the rate of misdiagnosis of clumpy arti...
06/05/2020
Not All Green Is Tophi: The Importance of Optimizing Minimum Attenuation and Using a Tin Filter to Minimize Clumpy Artifacts on Foot and Ankle Dual-Energy CT : American Journal of Roentgenology : Vol. 214, No. 6 (AJR)

This open-access study evaluates the frequency and location of clumpy artifacts, the rate of misdiagnosis of clumpy artifacts as gout, and the effects of raising the minimum attenuation value and using a selective photon shield in DECT.

OBJECTIVE. The clumpy artifact has a high misdiagnosis rate, but the artifact has not been well studied. The aims of this study were to evaluate the frequency and location of clumpy artifacts, the ...

This new course discusses the current medical malpractice environment, focusing on issues facing interventional radiolog...
06/05/2020
Radiology Malpractice and Risk Management Online Course

This new course discusses the current medical malpractice environment, focusing on issues facing interventional radiologists and also covers medical malpractice concerns for physicians in the radiology field.

This course discusses the current medical malpractice environment, focusing on issues facing interventional radiologists and also covers medical malpractice concerns for physicians in the radiology field. The research for this course was funded in part by the ARRS Berlin Scholarship.

This article evaluates the diagnostic performance of the kinetic parameters of ultrafast and standard DCE-MRI compared w...
06/04/2020
Nonmass Enhancement Breast Lesions: Diagnostic Performance of Kinetic Assessment on Ultrafast and Standard Dynamic Contrast-Enhanced MRI in Comparison With Morphologic Evaluation : American Journal of Roentgenology : Ahead of Print (AJR)

This article evaluates the diagnostic performance of the kinetic parameters of ultrafast and standard DCE-MRI compared with morphologic evaluation in differentiating benign from malignant NME breast lesions.

OBJECTIVE. The purpose of this article was to evaluate the diagnostic performance of the kinetic parameters of ultrafast and standard dynamic contrast-enhanced MRI (DCE-MRI) compared with morpholog...

This study with credit from the June issue takes a look at how the increasing recognition of limited mammographic sensit...
06/03/2020
Screening Breast Ultrasound: Update After 10 Years of Breast Density Notification Laws : American Journal of Roentgenology : Vol. 214, No. 6 (AJR)

This study with credit from the June issue takes a look at how the increasing recognition of limited mammographic sensitivity in women with dense breasts has led to greater utilization of supplemental screening ultrasound.

OBJECTIVE. Breast density notification laws have grown from the first state legislation in Connecticut in 2009 to a federally mandated update to the Mammography Quality Standards Act in 2019. CONCL...

The recording of today's webinar on AI in the Time of COVID-19 is now available on our site.
06/02/2020
COVID-19 Resources

The recording of today's webinar on AI in the Time of COVID-19 is now available on our site.

ARRS is committed to providing all radiologists with open access to the latest imaging research on COVID-19 to help understand the imaging features associated with coronavirus.

This open-access article reviews and analyzes the diagnostic accuracy of chest CT in detecting COVID-19.
06/02/2020
Systematic Review and Meta-Analysis on the Value of Chest CT in the Diagnosis of Coronavirus Disease (COVID-19): Sol Scientiae, Illustra Nos : American Journal of Roentgenology : Ahead of Print (AJR)

This open-access article reviews and analyzes the diagnostic accuracy of chest CT in detecting COVID-19.

OBJECTIVE. The purpose of this article is to systematically review and meta-analyze the diagnostic accuracy of chest CT in detecting coronavirus disease (COVID-19). MATERIALS AND METHODS. MEDLINE w...

This study establishes a diagnostic model for differentiating G3 PNETs from PDACs and to analyze survival outcomes.
06/01/2020
Grade 3 Pancreatic Neuroendocrine Tumors on MDCT: Establishing a Diagnostic Model and Comparing Survival Against Pancreatic Ductal Adenocarcinoma : American Journal of Roentgenology : Ahead of Print (AJR)

This study establishes a diagnostic model for differentiating G3 PNETs from PDACs and to analyze survival outcomes.

OBJECTIVE. The purpose of this study is to establish a diagnostic model for differentiating grade 3 (G3) pancreatic neuroendocrine tumors (PNETs) from pancreatic ductal adenocarcinomas (PDACs) and ...

Bellevue Hospital’s leading emergency radiologist breaks down the process map for mass casualty incidents—exploring pati...
06/01/2020
Mass Casualty Incidents: An Introduction for Imagers

Bellevue Hospital’s leading emergency radiologist breaks down the process map for mass casualty incidents—exploring patient triage, increasing throughput, and detailing useful strategies for imaging department improvement.

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.

Can you diagnose this woman with lobular carcinoma history?
06/01/2020
ARRS Case of the Week

Can you diagnose this woman with lobular carcinoma history?

Laterally exaggerated craniocaudal (A) and spot mediolateral oblique (B) mammograms show an irregular mass with spiculated margins (arrow) in the upper outer quadrant of the right breast. There are no associated calcifications. Ultrasound image of the upper outer quadrant (C) shows an irregular, hyp...

This article describes trends in hospital performance on national hospital outpatient imaging efficiency measures since ...
05/31/2020
Trends in Publicly Reported Quality Measures of Hospital Imaging Efficiency, 2011–2018 : American Journal of Roentgenology : Ahead of Print (AJR)

This article describes trends in hospital performance on national hospital outpatient imaging efficiency measures since the inception of their public reporting.

OBJECTIVE. In 2011, the Centers for Medicare & Medicaid Services (CMS) initiated public reporting of outpatient imaging efficiency measures to reduce potentially inappropriate imaging and unnecessa...

InPractice sat down with Thomas Berquist, AJR’s longtime editor in chief, to discuss his 12-year tenure at the journal.
05/31/2020
Berquist Bids Adieu to AJR - ARRS InPractice

InPractice sat down with Thomas Berquist, AJR’s longtime editor in chief, to discuss his 12-year tenure at the journal.

InPractice sits down with Thomas Berquist, AJR's longtime editor in chief.

The purpose of this study was to compare the ability of the model for MELD and MELD-Na scoring systems to predict outcom...
05/30/2020
MELD or Sodium MELD: A Comparison of the Ability of Two Scoring Systems to Predict Outcomes After Transjugular Intrahepatic Portosystemic Shunt Placement : American Journal of Roentgenology : Ahead of Print (AJR)

The purpose of this study was to compare the ability of the model for MELD and MELD-Na scoring systems to predict outcomes after TIPS placement.

OBJECTIVE. The purpose of this study was to compare the ability of the model for end-stage liver disease (MELD) and sodium MELD (MELD-Na) scoring systems to predict outcomes after transjugular intr...

To support the global radiology community, ARRS has made these chest imaging lectures open access.
05/30/2020
Chest Imaging Resources

To support the global radiology community, ARRS has made these chest imaging lectures open access.

To support the global radiology community, ARRS has made these chest imaging lectures open access. Please share any and all of these resources with your colleagues, residents, and fellows.

Although the clinical symptoms of pediatric COVID-19 pneumonia may be non-specific, some characteristic imaging findings...
05/29/2020
AJR Podcast Series

Although the clinical symptoms of pediatric COVID-19 pneumonia may be non-specific, some characteristic imaging findings have emerged or are currently emerging. 🎧

In this series, authors of select AJR articles discuss how their studies were performed, the results, and how the studies changed their practices. Listen to the latest podcasts by selecting one of the following:

This article reviews the updated N category, organ-specific regional lymph nodes, and lymphatic drainage pathways for ca...
05/29/2020
Understanding the Lymphatics: Review of the N Category in the Updated TNM Staging of Cancers of the Digestive System : American Journal of Roentgenology : Ahead of Print (AJR)

This article reviews the updated N category, organ-specific regional lymph nodes, and lymphatic drainage pathways for cancers of the digestive system from the esophagus to the anal canal.

OBJECTIVE. The N category has been significantly updated in the 8th edition of the American Joint Committee on Cancer's TNM classification. To ensure correct tumor staging, prognosis, and managemen...

This study determines factors related to delayed isolation of patients hospitalized with active pulmonary tuberculosis.
05/28/2020
Delayed Isolation of Active Pulmonary Tuberculosis in Hospitalized Patients: A Pivotal Role of Radiologic Evaluation : American Journal of Roentgenology : Ahead of Print (AJR)

This study determines factors related to delayed isolation of patients hospitalized with active pulmonary tuberculosis.

OBJECTIVE. The purpose of this study was to determine factors related to delayed isolation of patients hospitalized with active pulmonary tuberculosis (TB). MATERIALS AND METHODS. A total of 130 im...

Join us on Tuesday, June 2 for an open-access webinar that will present the status of AI applications in COVID-19 imagin...
05/27/2020
AI in the Time of COVID-19

Join us on Tuesday, June 2 for an open-access webinar that will present the status of AI applications in COVID-19 imaging, and critically appraise available AI solutions.

Postdoctoral Fellow, Division of Cardiothoracic Imaging, Nuclear Medicine and Molecular Imaging, Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, USA

This open-access study compares clinical and chest CT findings in patients with H1N1 pneumonia and COVID-19 pneumonia.
05/27/2020
A Comparison of Clinical and Chest CT Findings in Patients With Influenza A (H1N1) Virus Infection and Coronavirus Disease (COVID-19) : American Journal of Roentgenology : Ahead of Print (AJR)

This open-access study compares clinical and chest CT findings in patients with H1N1 pneumonia and COVID-19 pneumonia.

OBJECTIVE. The purpose of this study was to compare clinical and chest CT findings in patients with influenza A (H1N1) pneumonia and coronavirus disease (COVID-19) pneumonia. MATERIALS AND METHODS....

The findings of this study indicated that this tissue expander with RFID port is "MR Conditional" for a patient referred...
05/26/2020
Breast Tissue Expander With Radiofrequency Identification Port: Assessment of MRI Issues : American Journal of Roentgenology : Ahead of Print (AJR)

The findings of this study indicated that this tissue expander with RFID port is "MR Conditional" for a patient referred for MRI at 1.5 T or 3 T.

OBJECTIVE. Breast tissue expanders with magnetic ports are MRI unsafe, preventing patients from benefiting from the diagnostic capabilities of MRI. A tissue expander was recently developed with a r...

Can you diagnose this man in the emergency department with a fever?
05/26/2020
ARRS Case of the Week

Can you diagnose this man in the emergency department with a fever?

56-year-old woman with nausea, vomiting (coffee ground emesis), and abdominal pain and history of rheumatoid arthritis, chronic kidney disease, and factor V Leiden mutation treated with long-term anticoagulation.

This study develops a low-dose radiography protocol for the NICU using a new mobile digital radiography system with adva...
05/25/2020
Development of Quality-Controlled Low-Dose Protocols for Radiography in the Neonatal ICU Using a New Mobile Digital Radiography System : American Journal of Roentgenology : Ahead of Print (AJR)

This study develops a low-dose radiography protocol for the NICU using a new mobile digital radiography system with advanced denoising image processing and to evaluate the noninferiority of that protocol.

OBJECTIVE. The aim of this study was to develop a low-dose radiography protocol for the neonatal ICU (NICU) using a new mobile digital radiography system with advanced denoising image processing an...

This study determines the accuracy of ultrasound and CT in diagnosing appendicitis at an institution while taking into a...
05/24/2020
Ultrasound and CT in the Diagnosis of Appendicitis: Accuracy With Consideration of Indeterminate Examinations According to STARD Guidelines : American Journal of Roentgenology : Ahead of Print (AJR)

This study determines the accuracy of ultrasound and CT in diagnosing appendicitis at an institution while taking into account the number of indeterminate examinations in accordance with STARD guidelines.

OBJECTIVE. The objective of our study was to determine the accuracy of ultrasound (US) and CT in diagnosing appendicitis at our institution while taking into account the number of indeterminate exa...

Our COVID-19 site is constantly being updated with new resources to meet the needs of radiologists during this time.
05/24/2020
ARRS COVID-19 Resources

Our COVID-19 site is constantly being updated with new resources to meet the needs of radiologists during this time.

ARRS is committed to providing all radiologists with open access to the latest imaging research on COVID-19 to help understand the imaging features associated with coronavirus.

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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 (ajronline.org), innovative web lectures, and point-of-care CME.

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