ARRS

Axillary lymphadenopathy after a COVID-19 vaccine booster dose has a mean time to resolution of 102 days, shorter than the time to resolution after the initial series.

News | Coronavirus (COVID-19)

Axillary Lymphadenopathy After COVID-19 Vaccine Booster—Time to Resolution on Ultrasound Follow-Up

March 13, 2023 — According to an accepted manuscript published in ARRS’ American Journal of Roentgenology (AJR) ...

March 13, 2023

The American Roentgen Ray Society (ARRS) proudly recognizes Drs. Varney, Alves, Pasquini, and Srivastava, as well as their research, with the 2023 ARRS Resident/Fellow in Radiology Awards

News | ARRS

ARRS Roentgen Fund Grants Resident/Fellow Awards to Four Radiologists

March 6, 2023 — The American Roentgen Ray Society (ARRS) proudly recognizes the following four radiologists, as well as ...

March 06, 2023

33-year-old, low risk of acute coronary syndrome, presents to off-hour ED with acute chest pain

News | Computed Tomography (CT)

Coronary CTA for Acute Chest Pain Emergencies: Single- vs. Dual-Source Scanners

March 1, 2023 — According to an accepted manuscript published in ARRS’ American Journal of Roentgenology (AJR), using a ...

March 01, 2023

Examples of Specific Causes Identified for AI Tool Failure.

News | Computed Tomography (CT)

Technical Adequacy of AI Body Composition Assessed in External CT

February 22, 2023 — According to an accepted manuscript published in ARRS’ American Journal of Roentgenology (AJR) ...

February 22, 2023

This final rule will help ensure the requirements for radiation emitting electronic products and medical devices continue to protect the public health and safety while reducing unnecessary regulatory burdens

News | Computed Tomography (CT)

FDA Update on the Final Rule for Diagnostic X-Ray, Laser Products, and Ultrasonic Products

February 22, 2023 — In January 2023, the U.S. Food and Drug Administration (FDA) published the final rule: Radiological ...

February 22, 2023

Acute ischemic stroke patients with each PIRI score on 5-point scale

News | Magnetic Resonance Imaging (MRI)

Percent Insular Ribbon Infarction for Growth Rate Prediction, Outcomes in Large-Vessel Occlusive Stroke

February 16, 2023 — According to an accepted manuscript published in ARRS’ American Journal of Roentgenology (AJR) ...

February 16, 2023

52-year-old woman with stereotactic biopsy-proven intermediate grade DCIS, upgraded to high-grade invasive ducal carcinoma. A) Preoperative breast MRI, initial DCE post-contrast axial fat-saturated T1 axial subtraction image, demonstrates 6 cm clumped enhancement surrounding biopsy clip (arrow). B) Ultrafast imaging, post-contrast subtraction with TTE of 5 seconds (arrow)

News | Magnetic Resonance Imaging (MRI)

Predicting DCIS Upgrade to Invasive Cancer at Breast Surgery With Ultrafast Imaging

February 9, 2023 — According to an accepted manuscript published in ARRS’ American Journal of Roentgenology (AJR) ...

February 09, 2023

PRISMA flow diagram shows identification, screening, and inclusion of studies

News | Magnetic Resonance Imaging (MRI)

MRI Surveillance for Postsurgical Musculoskeletal Soft-Tissue Sarcomas

February 1, 2023 — According to an accepted manuscript published in ARRS’ American Journal of Roentgenology (AJR), MRI ...

February 01, 2023

The American Roentgen Ray Society (ARRS) proudly announces the latest recipients of the ARRS Clinician Educator Development Program for radiologists.

News | ARRS

ARRS Roentgen Fund Awards Clinician Educator Development Grants to 27 Radiologists

January 20, 2023 — The American Roentgen Ray Society (ARRS) proudly announces the latest recipients of the ARRS ...

January 20, 2023

62-year-old man with history of oropharyngeal cancer, treated by chemoradiation therapy. Contrast-enhanced multiphase DECT of chest performed for surgical planning. Axial image from iodine concentration map, reconstructed from equilibrium-phase acquisition, shows thin ringlike peripheral high iodine concentration, involving nodule’s entire circumference. Nodule underwent resection, revealing oropharyngeal carcinoma metastasis. Case represents true-positive example of using ringlike peripheral high iodine co

News | Lung Imaging

DECT Iodine Concentration Differentiates Lung Cancer from Pulmonary Metastases

January 11, 2023 — According to an accepted manuscript published in ARRS’ American Journal of Roentgenology (AJR) ...

January 11, 2023

Metastasis was treated by upfront microwave ablation (MWA) and adjuvant systemic therapy (six cycles of FOLFIRI plus Bevacizumab). A. Axial contrast-enhanced T1-weighted MR image obtained before treatment shows 32x29x37-mm target lesion in segment V (arrow). B. Ultrasound image obtained during ultrasound-guided MWA shows hyperechogenicity around target lesion, corresponding with heat energy from ablation antennas. C. Axial contrast-enhanced T1-weighted MR image obtained 1 month after MWA shows 56x49x52-mm r

News | ARRS

Colorectal Liver Oligometastases: Upfront vs. Delayed Thermal Ablation

December 28, 2022 — According to an accepted manuscript published in ARRS’ American Journal of Roentgenology (AJR) ...

December 28, 2022

News | Radiology Business

American Roentgen Ray Society Names Jon A. Jacobson 2023 ARRS Distinguished Educator

December 28, 2022 — An ARRS member for more than three decades, Dr. Jon A. Jacobson presented his first ARRS Scientific ...

December 28, 2022

Tornado diagram shows minimum and maximum costs according to hospital and activity. Depicted minimum and maximum costs are derived by using minimum and maximum time durations for each hospital and activity.

News | Pediatric Imaging

Pediatric Outpatient Noncontrast Brain MRI: A Cost Analysis at Three U.S. Hospitals

December 23, 2022 — Findings from an accepted manuscript published in ARRS’ American Journal of Roentgenology (AJR) have ...

December 23, 2022

Dr. Bernard King will be formally recognized as the 2023 ARRS Gold Medalist during the opening ceremony of the ARRS Annual Meeting in Honolulu, HI on Sunday, April 16, 2023.

News | ARRS

American Roentgen Ray Society Awards 2023 Gold Medal to Former ARRS President, Bernard F. King

December 19, 2022 — The American Roentgen Ray Society (ARRS) announced that Bernard F. King, Jr., MD, FACR, FSAR, the ...

December 19, 2022

61-year-old male, post lung transplant, who underwent photon-counting detector CT of chest in ultra-high-resolution mode. Reconstructions were performed at 0.2-mm slice thickness with BI56 kernel (A), BI60 kernel (B), and BI64 kernel (C); at 0.4-mm slice thickness with BI56 kernel (D), BI60 kernel (E), and BI64 kernel (F); and at 1.0-mm slice thickness with BI56 kernel (G), BI60 kernel (H), and BI64 kernel (I). Clinical-reference reconstruction (BI64 kernel at 1.0-mm slice thickness) is shown with red outli

News | Computed Tomography (CT)

Kernel and Slice in Ultra-High-Resolution Photon-Counting Detector CT

December 15, 2022 — An accepted manuscript published in ARRS’ American Journal of Roentgenology (AJR) guides ...

December 15, 2022

71-year-old woman at high-risk for HCC due to chronic hepatitis B. Patient underwent CEUS using perfluorobutane. (A) Arterial-phase CEUS image (12 seconds after injection) shows 25-mm segment-8 lesion with nonrim hyperenhancement (arrow). (B) CEUS image in portal-venous phase (48 seconds) shows corresponding early washout (arrow). (C) CEUS image in late phase (2 minutes) shows corresponding late and mild washout (arrow). (D) CEUS image in Kupffer phase (15 minutes) shows marked Kupffer defect (arrow). Patie

News | Magnetic Resonance Imaging (MRI)

CEUS With Perfluorobutane Diagnoses High-Risk HCC

November 17, 2022 — According to an accepted manuscript published in ARRS’ American Journal of Roentgenology (AJR) ...

November 17, 2022

News | Radiology Business

ARRS Names Sarah Kamel, Ankur Goyal AJR Figley, Rogers Radiology Journalism Fellows

November 11, 2022 — The American Roentgen Ray Society (ARRS) is proud to announce Dr. Sarah Kamel of Thomas Jefferson ...

November 11, 2022

76-year-old male patient who underwent right lower lobectomy for lung cancer. (A) Axial image from preop DECT chest exam shows 2.3-cm part-solid nodule in right lower lobe (arrow). Nodule confirmed to represent lung adenocarcinoma, based on pathologic assessment of surgical specimen. (B) Monochromatic image at 70-KeV with color overlay shows segmentation of five pulmonary lobes. Red indicates upper lobes; yellow indicates right middle lobe; and blue indicates lower lobe. 3D volume-rendering images from (C)

News | Computed Tomography (CT)

DECT Assesses Postoperative Lung Volume, Perfusion Changes

November 7, 2022 — According to an accepted manuscript published in ARRS’ American Journal of Roentgenology (AJR) ...

November 07, 2022

Screenshot of communication and tracking tool for radiologist-recommended follow-up imaging

News | PACS

PACS, EHR Tool Identifies Incomplete, Clinically Necessary Follow-up Imaging

October 28, 2022 — According to an accepted manuscript published in ARRS’ American Journal of Roentgenology (AJR) ...

October 28, 2022

54-year-old with pathologically confirmed inflammatory adenoma in left lobe that underwent evaluation by gadoxetate disodium-enhanced MRI. Axial T1-weighted fat-saturated precontrast image shows isointensity to liver of adenoma (arrow). Axial arterial-phase postcontrast image shows hyperintensity to liver (arrow). Axial portal-venous phase postcontrast image shows hyperintensity to liver (arrow). Axial hepatobiliary-phase postcontrast image shows hyperintensity to liver (arrow). Hepatobiliary-phase liver-to

News | Magnetic Resonance Imaging (MRI)

Gadoxetate Disodium–Enhanced MRI Algorithm Identifies Hepatocellular Adenomas

October 12, 2022 — According to an article in ARRS’ American Journal of Roentgenology (AJR), findings on gadoxetate ...

October 12, 2022