Rosemary Frei

Breast
Discrepancies trigger Ontario radiology peer-review program
Formal radiology peer review will be implemented across the province of Ontario after an 18.2% discrepancy rate was uncovered in an external review of images read by Ontario radiologist Dr. Ivo Slezic. The review's findings were released last week by Trillium Health Partners.
December 10, 2013
Breast
New open-source software could improve breast cancer management
MONTREAL - A new software suite is being developed in the Canadian Atlantic provinces that could make patient management and imaging resource use more efficient, not only in that region but in the rest of the world. Information on the system was presented this week at the 2012 World Cancer Congress.
August 30, 2012
Ultrasound
Report ties keepsake ultrasound to fetal gender tests in Canada
An investigative report has caused a stir in Canada after it revealed that keepsake ultrasound clinics are willing to provide the gender of fetuses before 20 weeks of gestation. This is early enough for women to request an abortion and feeds into the phenomenon of female feticide in some immigrant communities in Canada.
June 14, 2012
CT
Radiologists could be key in identifying signs of elder abuse
A radiologist-led team from Toronto has identified a gestalt of injuries and surrounding social context common to most cases of physical abuse of the elderly. The group believes this could be a guide to identifying victims of elder abuse, much as a pediatric radiologist defined the signs of shaken-baby syndrome in the 1940s.
May 8, 2012
Nuclear Medicine
Oral antioxidants could prevent DNA damage from radiation
Canadian researchers plan to start clinical trials soon of an oral antioxidant cocktail designed to prevent radiation-induced DNA damage from medical imaging scans. The trial follows tests they've already conduct in humans -- more specifically, themselves.
May 6, 2012
Nuclear Medicine
AAN: DaTscan SPECT tracer changes Parkinson's treatment
Results from a randomized clinical trial being presented at this week's American Academy of Neurology (AAN) meeting suggest that the SPECT radiopharmaceutical DaTscan can help clinicians distinguish between tremors due to Parkinson's disease and nonparkinsonian essential tremor, expediting appropriate treatment.
April 23, 2012
CT
CT confirms extent of lung involvement in H1N1 pneumonia
Severe H1N1 pneumonia has a distinct imaging signature, according to University of California, Los Angeles researchers, who presented their work at the Society of Critical Care Medicine meeting earlier this month.
February 26, 2012
MRI
2 MR parameters highly predictive of MS diagnosis in children
A large study of children at 23 pediatric hospitals across Canada has yielded a combination of two MRI parameters that predicts the diagnosis of multiple sclerosis (MS) with an accuracy of approximately 90%. The results were published online November 7 in Lancet Neurology.
November 13, 2011
CT
CT boosts prediction of acute stroke in TIA patients
Modifying a commonly used scale for stroke prediction in transient ischemic attack (TIA) patients to take into account whether acute ischemia is present on CT increases the scale's accuracy, according to a presentation this month at the Canadian Stroke Congress in Ottawa, Ontario.
October 25, 2011
Industry News
Commoditization can be impetus for positive change
The recent Canadian Association of Radiologists annual meeting included a debate on the commoditization of radiology, and while none of the presenters truly feels positively about the trend, they did agree that it can be the stimulus for positive change for the specialty.
May 29, 2011
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November 2024 Kuwtr Ep9
Podcasts
Podcast: What's next for chest radiographs?
In this episode of Keeping up with the Radiologists, co-hosts Saurabh (Harry) Jha, MD, and Mitchell Schnall, MD, assess the future of the chest radiograph.
Thyroid Cancer
Interventional
Thermal ablation effective long term in patients with thyroid cancer
Baby Bottle
Ultrasound
Could cranial ultrasound sub for brain MRI in imaging infants?
Lateral conventional attenuation (a, b, e, f) and co-registered dark-field (c, d, g, h) images of two spine specimens. Vertical (a, c, e, g) and horizontal (b, d, f, h) scans of the spine specimen of a 77-year-old female with osteoporosis (bone mineral density = 65.75 mg/dL) (a–d) and a non-osteoporotic spine specimen (e–h) of a 61-year-old female (bone mineral density = 169.38 mg/dL).
Digital X-Ray
Dark-field x-ray detects bone changes related to osteoporosis
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More in Home
Podcast: What's next for chest radiographs?
By Liz Carey
In this episode of Keeping up with the Radiologists, co-hosts Saurabh (Harry) Jha, MD, and Mitchell Schnall, MD, assess the future of the chest radiograph.
November 7, 2024
November 2024 Kuwtr Ep9
Thermal ablation effective long term in patients with thyroid cancer
By Will Morton
Outcomes over 10 years suggest that image-guided thermal ablation is a safe and effective option for patients with papillary thyroid carcinoma.
November 7, 2024
Thyroid Cancer
Could cranial ultrasound sub for brain MRI in imaging infants?
By Amerigo Allegretto
Cranial ultrasound could have utility for imaging infants with hypoxic-ischemic encephalopathy.
November 6, 2024
Baby Bottle
Dark-field x-ray detects bone changes related to osteoporosis
By Will Morton
Dark-field x-ray imaging can provide insights into bone microstructure and potentially could have a role in assessing osteoporosis.
November 5, 2024
Lateral conventional attenuation (a, b, e, f) and co-registered dark-field (c, d, g, h) images of two spine specimens. Vertical (a, c, e, g) and horizontal (b, d, f, h) scans of the spine specimen of a 77-year-old female with osteoporosis (bone mineral density = 65.75 mg/dL) (a–d) and a non-osteoporotic spine specimen (e–h) of a 61-year-old female (bone mineral density = 169.38 mg/dL).
Radiology responds to devastating floods in Spain
By Edna Astbury-Ward, PhD
Members of Valencia's radiological community are reeling from the worst flooding experienced by the region for generations.
November 6, 2024
Cars Picanya
Tributes pour in for CT pioneer Willi Kalender
By Philip Ward
The medical imaging community has paid tribute to Willi Kalender, PhD, the renowned medical physicist.
November 6, 2024
2024 11 05 Willi Kalender Thumbnail
Ultrasound nonmass breast lesion features may signal malignancy
By Amerigo Allegretto
Some nonmass breast lesion characteristics on ultrasound exams can be considered suspicious for malignancy at screening ultrasound.
November 5, 2024
Images depict a 43-year-old woman with a malignant non-mass lesion that was diagnosed as microinvasive ductal carcinoma. (A) Transverse and (B) longitudinal ultrasound images show a hypoechoic non-mass lesion (solid arrows) with segmental distribution in the left breast. The lesion has associated calcifications (dashed arrows in A). (C) Longitudinal color Doppler ultrasound image shows high vascularity. (D) Magnified image in the mediolateral oblique view from screening mammography shows grouped calcifications (arrows), which are considered a mammographic correlate of the ultrasound-detected non-mass lesion (A radiopaque marker attached to the skin is visible in the image because the mammographic exam was performed after screening breast ultrasound). Ultrasound-guided core needle biopsy and pathologic examination revealed ductal carcinoma in situ, but the lesion was upgraded to microinvasive ductal carcinoma at subsequent surgery (2.5-cm ductal carcinoma in situ, histologic grade II, estrogen receptor-positive, progesterone receptor-positive, human epidermal growth factor receptor type 2-negative).
Ventricular remodeling on cardiac MRI predicts cardiovascular outcomes
By Kate Madden Yee
The presence of left ventricular changes revealed on cardiac MRI can help predict 10-year negative cardiovascular outcomes, researchers have reported.
November 5, 2024
Heart Damage
Imaging societies' reactions mixed on finalized MPFS, HOPPS rule
By Amerigo Allegretto
Radiological societies have mixed thoughts after the CMS finalized its 2025 MPFS and the Hospital Outpatient Prospective Payment System rules.
November 4, 2024
Capitol Hill Government
Chest x-ray AI shines in ‘real-world’ setting
By Will Morton
A PACS-integrated AI tool correctly identified pneumothorax on inpatient chest x-rays, prioritized scans, and improved radiologist reporting times.
November 4, 2024
Critical Care Suite
Cloud-based imaging: The new catalyst for healthcare transformation
By Dhaval Shah
Dhaval Shah of CitiusTech discusses the benefits of cloud-based image management for radiology practices.
November 4, 2024
Dhaval Shah Thumbnail
SPECT/CT predicts treatment response in Pluvicto patients
By Will Morton
SPECT/CT scans taken just four hours after patients begin Lu-177 PSMA-617 treatment can help assess treatment responses.
November 1, 2024
Pluvicto Spect Ct Response Thumbnail
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