Internal Derangements of Joints: Brazil

Jun 7th, 2012Jun 9th, 2012

Sao Paulo, 27

BR

http://iicme.net/events.asp?action=form&formID=2356&recordID=618745

This program is an update of current information on MR imaging in the assessment of MSK disorders.

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MRI shows how hormones affect mood

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Radiologist pipeline trails increase in training positions

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Mammo Adobe Gorodenkoff

Neighborhood deprivation tied to lower breast cancer screening

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Shutterstock 2028051956 (1)

SPECT/CT access unequal across U.S.

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MRI shows how hormones affect mood

By Amerigo Allegretto

MRI scans show how higher progesterone levels indicate lower mood.

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Woman Mother Stressed 400

Radiologist pipeline trails increase in training positions

Radiology residency positions rose 33% between 2010 and 2025.

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Neighborhood deprivation tied to lower breast cancer screening

By Amerigo Allegretto

Women residing in neighborhoods with high deprivation have lower odds of getting their mammograms.

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Mammo Adobe Gorodenkoff

SPECT/CT access unequal across U.S.

At the state level, California, Texas, and Florida had the highest number of facilities in absolute terms.

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Shutterstock 2028051956 (1)

AI cuts chest CT reporting time

Exploratory modeling suggested an approximate reduction of 0.5 full-time equivalent radiologist workload.

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Example of AI-assisted pulmonary nodule detection and longitudinal volumetric assessment in a 65-year-old woman with peripheral arterial disease, a 24-pack-year smoking history, emphysema, and a family history of lung cancer. An incidental 8.5-mm right lower lobe pulmonary nodule is identified at CT angiography of the abdomen in July 2022 but does not receive follow-up. Subsequent imaging demonstrates interval growth, and CT-guided biopsy confirms stage IA lung adenocarcinoma. Contrast-enhanced axial chest CT images obtained on February 2, 2024, before robotic-assisted thoracoscopic segmentectomy, show a 12.1-mm spiculated right lower lobe pulmonary nodule. (A) Conventional contrast-enhanced axial chest CT image without AI assistance shows a 12.1-mm spiculated right lower lobe pulmonary nodule. (B) Corresponding CT image with AI-assisted pulmonary nodule detection, automated segmentation, and quantitative nodule assessment identifies a solid pulmonary nodule (nodule #1) measuring 13 × 8 (11) mm, with a volume of 739 mm3, a 45% volumetric increase compared with the previous contrast-enhanced chest CT performed on October 9, 2023 (510 mm3), and an estimated volume doubling time (VDT) of 216 days. (C) AI-generated longitudinal nodule analysis displays automated segmentation of the current (February 2, 2024) and previous (October 9, 2023) CT examinations, 3D nodule reconstruction, and quantitative volumetric assessment for longitudinal follow-up. The AI interface is displayed in the original software language (Dutch).

PCCT on par with MRI for diagnostic breast imaging

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PCCT performed similarly to MRI for characterizing breast lesions and finding additional lesions.

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Detection and extent of BI-RADS suspicious calcifications (amorphous, coarse heterogeneous, fine pleomorphic, and fine linear or fine linear branching) at axial photon-counting CT (PCCT) versus full-field digital mammography (first three images, craniocaudal view; last image, mediolateral oblique view). Calcifications found on mammography showed only partial visualization at ultrahigh-resolution PCCT (0.2 mm), while amorphous calcifications could not be distinguished from image noise. Corresponding abnormal enhancement was clearly depicted on contrast-enhanced PCCT images.

Self-interpreting by ordering clinicians tied to low-value imaging

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Visits involving clinicians who self-interpreted all their ordered imaging had higher odds of imaging overall.

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POCUS improves timeliness in emergency pregnancy care

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Emergency POCUS can reduce length of stay and time to diagnosis while not leading to more missed diagnoses of ectopic pregnancy.

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Bayer's PET agent meets endpoints in phase III cardiac amyloidosis study

Overall sensitivity was 94% (95% CI, 85% to 98%) and specificity was 86% (95% CI, 77% to 92%).

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This figure shows fused I-124 evuzamitide positron emission tomography (PET)/computed tomography (CT) images from patients without amyloidosis and from patients with ATTR cardiac amyloidosis, early ATTR cardiac amyloidosis, light chain cardiac amyloidosis, gelsolin-mediated amyloidosis, and systemic organ amyloid. The columns represent radiological transaxial, sagittal, and coronal views except for the last row middle and far right columns, which are coronal projections. The blue asterisks represent physiological activity (tracer activity in the stomach and esophagus). The arrowheads represent pathological uptake. Note the small amount of cardiac uptake in the basal septum and the basal lateral walls (likely early ATTR cardiac amyloidosis), splenic uptake and pleural uptake in light chain amyloidosis, and cardiac and kidney uptake in gelsolin-mediated amyloidosis. The bright yellow color represents more tracer uptake.

MRI-based biomarker tool can predict progression to dementia

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The tool measures gray matter shrinkage in the brain, predicting when mild cognitive impairment progresses to dementia.

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Is nitroglycerin necessary prior to photon-counting CT?

Sublingual nitroglycerin is routinely administered before CCTA to induce coronary vasodilation.

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Representative case from the non-nitroglycerin cohort. A 92-year-old man who did not receive sublingual nitroglycerin because of severe aortic stenosis. The Agatston coronary artery calcium score was 5438. (A) Curved multiplanar reformatted CCTA image reconstructed at 0.4-mm slice thickness using a Bv60 kernel and QIR strength 3 demonstrates diffuse multifocal mild luminal stenoses related to extensive calcified atherosclerotic plaque. (B) Invasive coronary angiography confirmed multifocal mild stenoses without evidence of obstructive coronary artery disease.

PET outperforms CT in ovarian cancer

Peritoneal carcinomatosis in ovarian cancer is cancer that has spread from the ovaries to the peritoneum.

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Comparison of contrast-enhanced CT (ceCT) and FAPI-PET in detecting peritoneal carcinomatosis in patient with advanced ovarian carcinoma. (A) ceCT shows subtle peritoneal thickening that is difficult to delineate. (B) Maximum-intensity-projection image demonstrating diffuse intense FAPI uptake corresponding to extensive peritoneal carcinomatosis. (C) FAPI-PET shows intense uptake corresponding with peritoneal carcinomatosis, with improved lesion conspicuity over ceCT.

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