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.

This study compares imaging-based surveillance and diagnostic strategies in patients at risk for hepatocellular carcinom...
05/03/2019
Cost-Utility Analysis of Imaging for Surveillance and Diagnosis of Hepatocellular Carcinoma : American Journal of Roentgenology : Ahead of Print (AJR)

This study compares imaging-based surveillance and diagnostic strategies in patients at risk for hepatocellular carcinoma while taking into account technically inadequate examinations and patient compliance.

OBJECTIVE. The purpose of this study is to compare imaging-based surveillance and diagnostic strategies in patients at risk for hepatocellular carcinoma (HCC) while taking into account technically ...

This study determines the overall and sector-based performance of 3-T multiparametric MRI for prostate cancer detection ...
05/03/2019
Detection and Localization of Prostate Cancer at 3-T Multiparametric MRI Using PI-RADS Segmentation : American Journal of Roentgenology : Ahead of Print (AJR)

This study determines the overall and sector-based performance of 3-T multiparametric MRI for prostate cancer detection and localization by using PI-RADSv2 scoring and segmentation compared with whole-mount histopathologic analysis.

OBJECTIVE. The purpose of this study is to determine the overall and sector-based performance of 3-T multiparametric MRI for prostate cancer (PCa) detection and localization by using Prostate Imagi...

This study determines the utility of radiomics features in differentiating CT cases of pancreatic ductal adenocarcinoma ...
05/02/2019
Utility of CT Radiomics Features in Differentiation of Pancreatic Ductal Adenocarcinoma From Normal Pancreatic Tissue : American Journal of Roentgenology : Ahead of Print (AJR)

This study determines the utility of radiomics features in differentiating CT cases of pancreatic ductal adenocarcinoma from normal pancreas.

OBJECTIVE. The objective of our study was to determine the utility of radiomics features in differentiating CT cases of pancreatic ductal adenocarcinoma (PDAC) from normal pancreas. MATERIALS AND M...

This is what the ARRS Annual Meeting looked like in 1902. It will look a little different at #ARRS19.
05/02/2019

This is what the ARRS Annual Meeting looked like in 1902. It will look a little different at #ARRS19.

This study investigates the contributing effect of contrast media iodine dose on radiation-induced DNA damage in blood l...
05/01/2019
Iodine Dose of Administered Contrast Media Affects the Level of Radiation-Induced DNA Damage During Cardiac CT Scans : American Journal of Roentgenology : Ahead of Print (AJR)

This study investigates the contributing effect of contrast media iodine dose on radiation-induced DNA damage in blood lymphocytes during a cardiac CT scan.

OBJECTIVE. The purpose of this study is to investigate the contributing effect of contrast media (CM) iodine dose on radiation-induced DNA damage in blood lymphocytes during a cardiac CT scan. MATE...

This article provides a multimodality imaging review of ileal carcinoid tumors.
04/30/2019
Multimodality Imaging of Ileal Neuroendocrine (Carcinoid) Tumor : American Journal of Roentgenology : Ahead of Print (AJR)

This article provides a multimodality imaging review of ileal carcinoid tumors.

CONCLUSION. Ileal carcinoid tumors display a variety of radiologic findings. Delay in diagnosis is common because of initial nonspecific symptoms and subtle imaging findings. Reviewing the multimodality imaging appearance of the primary tumor, metastatic disease, and associated ancillary findings ca...

Ultrasound-based stratification of the malignancy risk of thyroid nodules has potential variability. This study evaluate...
04/30/2019
Diagnostic Performance Evaluation of a Computer-Assisted Imaging Analysis System for Ultrasound Risk Stratification of Thyroid Nodules : American Journal of Roentgenology : Ahead of Print (AJR)

Ultrasound-based stratification of the malignancy risk of thyroid nodules has potential variability. This study evaluates the diagnostic effectiveness of the first commercially available system for computer-aided diagnosis imaging analysis.

OBJECTIVE. Ultrasound-based stratification of the malignancy risk of thyroid nodules has potential variability. The purpose of this study is to evaluate the diagnostic effectiveness of the first commercially available system for computer-aided diagnosis (CADx) imaging analysis.

This study investigates the association of fractal-derived bone microstructural parameters with vertebral fracture statu...
04/29/2019
Digital Tomosynthesis and Fractal Analysis Predict Prevalent Vertebral Fractures in Patients With Multiple Myeloma: A Preliminary In Vivo Study : American Journal of Roentgenology : Ahead of Print (AJR)

This study investigates the association of fractal-derived bone microstructural parameters with vertebral fracture status using in vivo digital tomosynthesis images of the spine.

OBJECTIVE. The objective of this study was to investigate the association of fractal-derived bone microstructural parameters with vertebral fracture status using in vivo digital tomosynthesis images of the spine.

Can you determine the next step after cardiac surgery and MR angiography for this 26-year-old man?
04/29/2019
ARRS Case of the Week

Can you determine the next step after cardiac surgery and MR angiography for this 26-year-old man?

26-year-old man with nonspecific symptoms after cardiac surgery; MR angiography has been performed, and the next step must be determined.

This article highlights the similarities and differences in workup and work flow across multiple institutions in the pre...
04/28/2019
Living Donor Liver Transplantation: Preoperative Planning and Postoperative Complications : American Journal of Roentgenology : Ahead of Print (AJR)

This article highlights the similarities and differences in workup and work flow across multiple institutions in the preoperative imaging assessment of liver donors.

OBJECTIVE. The purposes of this article are to highlight the similarities and differences in workup and work flow across multiple institutions in the preoperative imaging assessment of liver donors; to lay the foundation for developing consensus guidelines; to illustrate clinically relevant anatomic...

This study quantifies the extent of the gender disparities reflected within the journal editorial boards of the largest ...
04/28/2019
Novel Geographic Thematic Study of the Largest Radiology Societies Globally: How Is Gender Structure Biased Within Editorial Boards? : American Journal of Roentgenology : Ahead of Print (AJR)

This study quantifies the extent of the gender disparities reflected within the journal editorial boards of the largest international radiologic societies.

OBJECTIVE. Radiology has traditionally been a male-dominated medical specialty, and this is also reflected in the authorship of radiology publications and the composition of radiology journal editorial boards. The purpose of this study was to quantify the extent of the gender disparities reflected w...

This article discusses the process of becoming a liver donor, describes the surgical methods used for transplantation, a...
04/27/2019
Living Donor Liver Transplantation: Overview, Imaging Technique, and Diagnostic Considerations : American Journal of Roentgenology : Ahead of Print (AJR)

This article discusses the process of becoming a liver donor, describes the surgical methods used for transplantation, and critically reviews preoperative and intraoperative imaging techniques.

OBJECTIVE. The purpose of this article is to discuss the process of becoming a liver donor, describe the surgical methods used for transplantation, and critically review preoperative and intraoperative imaging techniques.

This study evaluates factors affecting the positive predictive value for detecting colorectal lesions at CT colonography...
04/27/2019
Positive Predictive Value for Colorectal Lesions at CT Colonography: Analysis of Factors Impacting Results in a Large Screening Cohort : American Journal of Roentgenology : Ahead of Print (AJR)

This study evaluates factors affecting the positive predictive value for detecting colorectal lesions at CT colonography, using optical colonoscopy as the reference standard for concordance.

OBJECTIVE. The purpose of this study is to evaluate factors affecting the positive predictive value (PPV) for detecting colorectal lesions at CT colonography (CTC), using optical colonoscopy (OC) as the reference standard for concordance.

Increasing reliance on MRI for the evaluation of sacroiliitis requires that radiologists be familiar with the normal app...
04/26/2019
MRI of the Sacroiliac Joint in Healthy Children : American Journal of Roentgenology : Ahead of Print (AJR)

Increasing reliance on MRI for the evaluation of sacroiliitis requires that radiologists be familiar with the normal appearance of the developing sacroiliac joint. This article describes age-related MRI features of the sacroiliac joints in healthy children.

OBJECTIVE. Increasing reliance on MRI for the evaluation of sacroiliitis requires that radiologists be familiar with the normal appearance of the developing sacroiliac joint. We describe age-related MRI features of the sacroiliac joints in healthy children.

Join us on May 1 at 8 PM Eastern Time as Nadja Kadom, MD leads a discussion on the importance of diversity in radiology,...
04/26/2019
#ARRSChat - Diversity in Radiology

Join us on May 1 at 8 PM Eastern Time as Nadja Kadom, MD leads a discussion on the importance of diversity in radiology, the role of diversity in hiring and retaining the best, and how to track the success of diversity efforts.

Join us on May 1 at 8 PM Eastern Time as moderator Nadja Kadom, MD leads a Twitter discussion on the importance of diversity in radiology, the role of diversity in hiring and retaining the best, and how to track the success of diversity efforts.

This study assesses whether MR volumetric data on DW and T2-weighted MR images are correlated with lymphovascular invasi...
04/25/2019
DWI and T2-Weighted MRI Volumetry in Resectable Rectal Cancer: Correlation With Lymphovascular Invasion and Lymph Node Metastases : American Journal of Roentgenology : Ahead of Print (AJR)

This study assesses whether MR volumetric data on DW and T2-weighted MR images are correlated with lymphovascular invasion and lymph node metastases in resectable rectal cancer.

OBJECTIVE. The purpose of this study was to assess whether MR volumetric data on DW and T2-weighted MR images are correlated with lymphovascular invasion and lymph node metastases in resectable rectal cancer.

Increasing reliance on MRI for evaluating of sacroiliitis requires that radiologists be familiar with the normal appeara...
04/25/2019
AJR Podcasts: MRI of the Sacroiliac Joint in Healthy Children

Increasing reliance on MRI for evaluating of sacroiliitis requires that radiologists be familiar with the normal appearance of the developing sacroiliac joint.

This episode details age-related MRI features of the sacroiliac joints in healthy children.

AJR Podcasts feature authors of select AJR articles discussing how they performed their studies and how the results of their studies changed their practices.

This article looks at how image-guided injections targeted to the symptomatic ossicle can confirm the suspected diagnosi...
04/24/2019
Os Conundrum: Identifying Symptomatic Sesamoids and Accessory Ossicles of the Foot : American Journal of Roentgenology : Ahead of Print (AJR)

This article looks at how image-guided injections targeted to the symptomatic ossicle can confirm the suspected diagnosis and predict therapeutic outcomes before surgical intervention.

OBJECTIVE. Sesamoids and accessory ossicles are frequently encountered normal osseous structures in the foot that may be an uncommon cause of pain. Familiarity with their imaging findings allows the radiologist to provide reassurance in normal cases and increase confidence when making the relatively...

Join us this October in Denver for a symposium on thoracic and cardiovascular imaging.
04/24/2019
Highlights in Thoracic and Cardiovascular Imaging

Join us this October in Denver for a symposium on thoracic and cardiovascular imaging.

Join us in Denver, CO or online October 11–12, 2019 for the Highlights in Thoracic and Cardiovascular Imaging Symposium. This symposium will offer a broad range of pulmonary, cardiac, and vascular disease presentations. Topics will include lung cancer imaging including screening and staging, and h...

This study compiles mammographic images in various projections showing commercially available breast biopsy site markers...
04/23/2019
Biopsy Marker Standardization: What's in a Name? : American Journal of Roentgenology : Ahead of Print (AJR)

This study compiles mammographic images in various projections showing commercially available breast biopsy site markers and provides a standardized nomenclature and marker guide to improve physician communication and patient care.

OBJECTIVE. The purposes of this study were to compile mammographic images in various projections showing commercially available breast biopsy site markers and to provide a standardized nomenclature and marker guide to improve physician communication and patient care.

This study investigates the predictive performance of ML–based unenhanced CT texture analysis in distinguishing low an...
04/23/2019
Unenhanced CT Texture Analysis of Clear Cell Renal Cell Carcinomas: A Machine Learning–Based Study for Predicting Histopathologic Nuclear Grade : American Journal of Roentgenology : Ahead of Print (AJR)

This study investigates the predictive performance of ML–based unenhanced CT texture analysis in distinguishing low and high nuclear grade clear cell renal cell carcinomas.

OBJECTIVE. The purpose of this study is to investigate the predictive performance of machine learning (ML)–based unenhanced CT texture analysis in distinguishing low (grades I and II) and high (grades III and IV) nuclear grade clear cell renal cell carcinomas (RCCs).

This study tests whether two-view wide-angle digital breast tomosynthesis (DBT) can replace full-field digital mammograp...
04/22/2019
Can Digital Breast Tomosynthesis Replace Full-Field Digital Mammography? A Multireader, Multicase Study of Wide-Angle Tomosynthesis : American Journal of Roentgenology : Ahead of Print (AJR)

This study tests whether two-view wide-angle digital breast tomosynthesis (DBT) can replace full-field digital mammography (FFDM) for breast cancer detection.

OBJECTIVE. The purpose of this study was to test the hypothesis whether two-view wide-angle digital breast tomosynthesis (DBT) can replace full-field digital mammography (FFDM) for breast cancer detection.

Can you diagnose this 15-year-old girl with 4 days of right-sided pelvic pain and a negative pregnancy test result?
04/22/2019
ARRS Case of the Week

Can you diagnose this 15-year-old girl with 4 days of right-sided pelvic pain and a negative pregnancy test result?

The study assesses pulmonary lesions in Japanese patients with microscopic polyangiitis.
04/21/2019
Chest High-Resolution CT Findings of Microscopic Polyangiitis: A Japanese First Nationwide Prospective Cohort Study : American Journal of Roentgenology : Ahead of Print (AJR)

The study assesses pulmonary lesions in Japanese patients with microscopic polyangiitis.

OBJECTIVE. The lung is one of the organs possibly involved in microscopic polyangiitis (MPA), and myeloperoxidase (MPO) antineutrophil cytoplasmic antibody (ANCA) is commonly found in patients with MPA. The aim of this study was to assess pulmonary lesions in Japanese patients with MPA.

This article discusses quantitative methods of CT, MRI, and ultrasound for noninvasive staging of hepatic fibrosis.
04/20/2019
Current Imaging Techniques for Noninvasive Staging of Hepatic Fibrosis : American Journal of Roentgenology : Ahead of Print (AJR)

This article discusses quantitative methods of CT, MRI, and ultrasound for noninvasive staging of hepatic fibrosis.

OBJECTIVE. The purpose of this article is to discuss quantitative methods of CT, MRI, and ultrasound (US) for noninvasive staging of hepatic fibrosis. Hepatic fibrosis is the hallmark of chronic liver disease (CLD), and staging by random liver biopsy is invasive and prone to sampling errors and subj...

This study evaluates the association between sonographic findings and the operative time of transumbilical laparoscopic-...
04/19/2019
Associations Between Sonographic Findings and Operative Time of Transumbilical Laparoscopic-Assisted Appendectomy for Acute Appendicitis in Children : American Journal of Roentgenology : Ahead of Print (AJR)

This study evaluates the association between sonographic findings and the operative time of transumbilical laparoscopic-assisted appendectomy for appendicitis in children.

OBJECTIVE. The purpose of this study is to evaluate the association between sonographic findings and the operative time of transumbilical laparoscopic-assisted appendectomy (TULAA) for appendicitis in children.

Congratulations to this year's scholars!
04/19/2019
ARRS Announces 2019 Scholars

Congratulations to this year's scholars!

The ARRS Scholarship supports study that will enable the scholar to attain professional career goals with the possibility of changing the way radiology is practiced. By giving both recognition and financial support to the activities and studies of young radiologists, ARRS helps these emerging leader...

This study determines whether focal distal appendiceal dilatation with a segment of morphologically normal appendix prox...
04/18/2019
Predicting Underlying Neoplasms in Appendiceal Mucoceles at CT: Focal Versus Diffuse Luminal Dilatation : American Journal of Roentgenology : Ahead of Print (AJR)

This study determines whether focal distal appendiceal dilatation with a segment of morphologically normal appendix proximally could predict an underlying neoplastic pathologic abnormality before surgery and histopathologic assessment.

OBJECTIVE. The purpose of this study was to determine whether a novel morphologic characteristic of appendiceal mucoceles at CT—focal distal appendiceal dilatation with a segment of morphologically normal appendix proximally—could predict an underlying neoplastic pathologic abnormality before su...

Digital Radiography had a slightly different meaning in this April Fool's Day article from the April 1989 issue of AJR.
04/18/2019

Digital Radiography had a slightly different meaning in this April Fool's Day article from the April 1989 issue of AJR.

This study investigates the effect of cine-averaged CT acquisition incorporated with the shallow breathing pattern of pa...
04/17/2019
Using Cine-Averaged CT With the Shallow Breathing Pattern to Reduce Respiration-Induced Artifacts for Thoracic Cavity PET/CT Scans : American Journal of Roentgenology : Ahead of Print (AJR)

This study investigates the effect of cine-averaged CT acquisition incorporated with the shallow breathing pattern of patients on the improvement of registration and quantification of lesions.

OBJECTIVE. PET/CT provides a fusion of both anatomic and functional information. However, because of the temporal difference of both modalities and respiratory motion of lungs, misregistration of lesions is frequently observed on thoracic PET/CT scans. The effect of cine-averaged CT (CACT) acquisiti...

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