Brian Casey

Nuclear Medicine
PET can help heart patients avoid cardiac cath
TORONTO - PET scanning with a rubidium-82 radiopharmaceutical can be a cheaper and less invasive alternative to cardiac catheterization in patients who have a nondiagnostic SPECT study, according to research presented Monday at the Society of Nuclear Medicine (SNM) meeting.
June 20, 2005
CT
PET and PET/CT best bone scan in detecting breast metastases
TORONTO - A pair of studies at yesterday's Society of Nuclear Medicine (SNM) meeting found that PET and PET/CT offer superior performance compared to bone scintigraphy scans in detecting bony metastases from primary breast cancer. But bone scintigraphy still offers better performance in a couple areas and may continue to play a diagnostic role due to its low cost.
June 19, 2005
Advanced Visualization
How to find and train a 3D technologist
SAN FRANCISCO - The routine use of 3D imaging has created a new class of radiologic technologists who specialize in processing and reconstructing 3D imaging studies before the radiologist interprets them. Such individuals can have a beneficial impact on 3D workflow by assuming 3D processing duties once handled by radiologists, according to speakers at the International Symposium on Multidetector-Row CT on Thursday.
June 16, 2005
CT
CT pioneer presents modality's wish list
June 15, 2005
Pediatric Radiology
Can pediatric radiology be saved?
June 13, 2005
IS
Healthcare IT offers competitive edge
June 8, 2005
Practice Management
Recruiting market brightens for radiologists
June 6, 2005
IS
New protocols offer hope for wireless security
ORLANDO, FL - While wireless computing may be a godsend for mobile PC users, it's a major headache for those tasked with maintaining security in sensitive computing environments like a PACS network. Fortunately, new security protocols will soon be arriving that should give system administrators some tools for combating unwanted network intrusions, according to a presentation at the Society for Computer Applications in Radiology (SCAR) meeting.
June 5, 2005
CT
VC CAD shows progress toward clinical use
ORLANDO, FL - Computer-aided detection programs originally made their mark in mammography, and are expanding into new applications like chest imaging. Virtual colonoscopy CAD is another promising application that could help radiologists detect more cancers and adenomatous polyps, according to a presentation at this week's Society for Computer Applications in Radiology (SCAR) meeting.
June 2, 2005
Home
Astronaut launches SCAR annual meeting
June 1, 2005
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2025 08 14 Int J Chron Obstruct Pulm Sui Figure2 Thumbnail
CT
Machine learning plus CT helps assess severity of COPD
A machine-learning model based on chest CT images accurately predicts lung function, which can help clinicians diagnose and assess COPD.
Thyroid 400
Ultrasound
Active thyroid surveillance effective, beneficial for older patients
A 58-year-old woman was diagnosed with ER-positive (Allred score 8) ILC in her right breast. Ultrasound and MRI found prominent lymph nodes in right axillary level I area, diagnosed as metastasis on ultrasound-guided fine-needle aspiration. F-18 FES-PET/CT showed a positive mass in right breast (white arrow; SUVmax, 5.6) and multiple F-18 FES–positive lymph nodes in right axillary level I, II, and II/III junction areas (red arrows; SUVmax, up to 12.2). In addition, a small F-18 FES-positive lymph node was observed in the right second internal mammary area (red circles; SUVmax, 1.8). However, biopsy could not be performed because it was too small and not visible on ultrasound; the clinician decided to include internal mammary lymph node in treatment field for adjuvant radiotherapy. The patient underwent lumpectomy with ALN dissection, with five metastases being identified in 13 lymph nodes dissected, and is scheduled to receive adjuvant chemotherapy, radiotherapy, and endocrine therapy.
Molecular Imaging
FES-PET shows promise staging women with invasive lobular cancer
Emergency Robert Hainer
CT
Structured CT reporting tool may aid hernia detection after bariatric surgery
2025 08 19 Ajr Hoballah Fig1 Thumbnail
MRI
Higher ventricular and atrial heart volumes boost cardiac disease risk
More in Home
Rural Medicare beneficiaries less likely to use mammography screening
By Amerigo Allegretto
Medicare beneficiaries who live in rural areas utilize mammography screening less than their urban counterparts.
November 14, 2023
Mammogram Patient 400
AI model shows promise detecting COVID-19 in low-resource settings
By Will Morton
An AI model shows promise for diagnosing COVID-19 in low-resource settings with severe shortages of medical experts, including in many African regions.
November 14, 2023
A schematic illustration of the AI systems (dark blue boxes) used in this study. The green boxes indicate a point-of-care blood test procedure. The pale blue boxes indicate numeric values which are inputs or outputs of the systems as shown. The COVID-LAB+ system does not require all the indicated inputs to be present. Image courtesy of Scientific Reports.
CT imaging increases children's blood cancer risk
By Kate Madden Yee
Children who undergo CT imaging are at increased risk of blood cancer, according to a team of investigators.
November 13, 2023
Ct Scanner Bore 400
2024 MPFS Final Rule includes payment reductions for radiology
By Sandy Coffta
In a new column, Sandy Coffta reviews the 2024 Medicare Physician Fee Schedule (MPFS) Final Rule and assesses its impact on radiology.
November 13, 2023
Sandy Coffta.
Do women prefer having female radiologists perform breast ultrasound?
By Amerigo Allegretto
Most women undergoing breast ultrasound are unconcerned about whether a radiologist is male or female.
November 13, 2023
Breast Specialist Ultrasound Exam 400 (2)
Study sheds light on AI 'black box' problem
By Will Morton
A group in Japan has provided evidence that so-called "intrasource balance" in COVID-19 chest x-ray data sets is vital to minimize the risk of poor performance of AI deep-learning models.
November 13, 2023
Chatgpt2
Recombined CEM images effective for depicting palpable breast lesions
By Kate Madden Yee
When it comes to working up palpable breast abnormalities with contrast-enhanced mammography (CEM), recombined images better depict the lesion than low-energy ones.
November 13, 2023
Breast Cancer Cell2 400
Housing assistance improves breast cancer screening uptake
By Amerigo Allegretto
Breast cancer screening is higher for some low-income women receiving government housing assistance than women who don’t.
November 9, 2023
Breast Mammo 400 (1)
NIH highlights PET study in Parkinson’s disease
By Will Morton
The NIH has highlighted a study that shows cardiac PET scans can help identify people at risk for Parkinson’s disease.
November 9, 2023
Heart and brain PET scans from a study participant who developed Parkinson’s disease support a “body first” progression. The top pair of PET scan images show low F-18 dopamine-derived radioactivity in the heart (right, with N-13 ammonia PET scan on left). Later, brain scans showed a loss of dopamine-producing neurons and the individual developed symptoms of the disease. Image courtesy of the National Institutes of Health.
MRI most cost-effective way to evaluate ED patients with dizziness
By Kate Madden Yee
MRI is the most cost-effective imaging modality for evaluating patients presenting to the emergency department (ED) with dizziness, research suggests.
November 9, 2023
Stroke Mri 400
AI modeling detects, classifies breast microcalcifications
By Amerigo Allegretto
A novel AI tool can accurately detect and characterize macrocalcifications on mammography, according to an Italian study.
November 9, 2023
Breast Cancer2 400
Features found on MRI may predict liver cancer recurrence after surgery
By Kate Madden Yee
An algorithm based on MRI features could help clinicians predict liver cancer recurrence after patients have undergone liver resection, researchers have found.
November 8, 2023
Preoperative axial extracellular contrast agent-enhanced (A-E) MRI and (F-H) follow-up CT images in a 71-year-old male patient with chronic hepatitis B and a serum neutrophil count of 4.2 × 109/L. A 5.6-cm mass with a 1.9-cm satellite nodule was detected in segments V and VIII. (A) The mass (asterisks, A-E) shows mild-to-moderate hyperintensity on T2-weighted images, (B) hypointensity on T1-weighted noncontrast-enhanced images, (C) less than 50% hyperenhancement on late arterial phase images, (D) nonperipheral washout and incomplete enhancing capsule on portal venous phase images, and (E) marked diffusion restriction on diffusion-weighted images (b = 800 sec/mm2). The mass was confirmed at histopathologic analysis as moderately differentiated hepatocellular carcinoma with microvascular invasion. With an advanced-stage recurrence after resection score of 19.8 points (4.2 + 5.6 + 10), this patient was assigned to the high-risk group (≥15 points) for advanced-stage recurrence. At follow-up, (F) noncontrast-enhanced, (G) arterial phase, and (H) portal venous phase CT images acquired at day 70 after surgery show multifocal intrahepatic recurrence and tumor thrombus in the left portal vein (black arrow, H). Images and caption courtesy of the RSNA.
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