American Roentgen Ray Society

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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 ...

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

Time January 11, 2023
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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) ...

Time December 28, 2022
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Jon A. Jacobson, MD, FACR
News | Radiology Business

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

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

Time December 28, 2022
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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 ...

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

Time December 23, 2022
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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 ...

Time December 15, 2022
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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) ...

Time November 17, 2022
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58-year-old patient referred for complex IVC filter retrieval after dwell time of 72 months.
News | ARRS

Referral Centers Offer High Success, Low Adversity for Complex ...

October 4, 2022 — According to an article in ARRS’ American Journal of Roentgenology (AJR), large specialized referral ...

Time October 04, 2022
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57-year-old patient with breast biopsy clips who underwent breast MRI for high-risk screening. A. Axial T1-weighted non-fat-saturated MR image shows no area of signal void. No reader detected clip using this sequence. B. Axial contrast-enhanced in-phase Dixon image shows signal void in right breast (arrow), which corresponded with MammoMark/CorMark Bread Tie biopsy clip. All three readers detected clip on this sequence, with confidence scores of 4, 3, and 2; assessments all classified as true positives (i.e
News | MRI Breast

Contrast-Enhanced In-Phase Dixon Sequence: Impact on Biopsy Clip ...

September 16, 2022 — According to ARRS’ American Journal of Roentgenology (AJR), the contrast-enhanced in-phase Dixon ...

Time September 16, 2022
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70-year-old White male patient with weight of 79.8 kg, BMI of 29.3, low cardiovascular risk factors (nonsmoker, no diabetes diagnosis, blood pressure of 120/78). Left: Axial CT image at level of L3 vertebral body. Right: Matching automated segmentation label map. Visceral fat area z score is 1.41, corresponding to the 92nd percentile. Patient experienced both subsequent myocardial infarction and stroke.
News | Computed Tomography (CT)

CT-Derived Body Composition With Deep Learning Predicts Cardiovascular ...

August 31, 2022 — According to ARRS’ American Journal of Roentgenology (AJR), fully automated and normalized body ...

Time August 31, 2022
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According to ARRS’ American Journal of Roentgenology (AJR), machine learning models applied to presently underutilized imaging features could help construct more reliable criteria for organ allocation and liver transplant eligibility.
News | Magnetic Resonance Imaging (MRI)

Machine Learning Models Predict Hepatocellular Carcinoma Treatment ...

August 18, 2022 —  According to ARRS’ American Journal of Roentgenology (AJR), machine learning models applied to ...

Time August 18, 2022
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