Cynthia E. Keen

CT
Studies address need to reduce CT dose in emergency settings
The escalating use of CT for children who present in emergency departments is of well-documented concern. But a pair of new studies published in the November issue of Pediatric Radiology indicates that while the problem is serious, pediatric imaging advocates are making progress in addressing the issue.
October 16, 2008
2008 10 10 15 36 48 155 Ped Insider Chart
MRI
MRI used to diagnose complex lung infections in children
CT is the gold standard for lung imaging, particularly when a chest x-ray lacks the detail needed to make a diagnosis. But CT's far higher radiation dose -- equivalent to 200 chest radiographs -- has some pediatric radiologists looking for an alternative modality, especially for children with chronic lung conditions who may require many CT scans.
October 15, 2008
2008 10 15 17 28 56 240 2008 10 16 Petlola Thumb
Pediatric Radiology
AuntMinnie.com Pediatric Imaging Insider
October 12, 2008
IS
Norwegian study finds mixed success with electronic reports
Streamlining the process of delivering radiology reports -- and making them universally accessible -- doesn't guarantee that they'll be read any faster by clinicians. In fact, quite the opposite may occur if human behavior doesn't adapt to the changes imposed by adopting healthcare informatics.
October 5, 2008
Radiation Oncology/Therapy
Younger DCIS survivors at no higher risk of recurrence, study says
Published research suggests that women under the age of 40 who are ductal carcinoma in situ (DCIS) survivors have an increased risk of recurrent breast cancer, but a new study presented at the American Society for Therapeutic Radiology and Oncology (ASTRO) meeting begs to differ.
September 30, 2008
Radiation Oncology/Therapy
Prostate cancer treatment calculator individualizes options
A patient newly diagnosed with prostate cancer can easily become overwhelmed by the many options available for treatment and disease management. Fortunately, a new Web site launched by radiation oncologists is now available to help guide patients through their treatment.
September 29, 2008
IS
Study: speech recognition boosts error rates in radiology reports
The likelihood of a final radiology report containing a substantive error is more than 50% greater if a speech recognition system is used, as opposed to traditional dictation, according to the results of a study published in the October issue of the British Journal of Radiology.
September 24, 2008
Radiation Oncology/Therapy
Physicians overestimate benefits of palliative whole-brain radiotherapy
BOSTON - Oncologists and referring physicians of patients with brain metastases are overly optimistic when estimating the clinical benefit of palliative whole-brain radiotherapy, especially for patients who have a single brain metastasis, according to a presentation at the American Society for Therapeutic Radiology and Oncology (ASTRO) meeting.
September 22, 2008
MRI
Breast MRI can guide radiation therapy to lymph nodes
BOSTON - New research presented at this week's American Society for Therapeutic Radiology and Oncology (ASTRO) meeting reveals that dynamic contrast-enhanced breast MRI may help clinicians determine whether mastectomy patients should also receive radiation therapy to the axillary lymph nodes.
September 21, 2008
IS
Critical results reporting software is promising, challenging
Healthcare IT vendors have developed critical test results management (CTRM) software to help simplify, streamline, and make more foolproof the delivery of urgent information, but CTRM implementation often meets with resistance in hospital environments.
September 21, 2008
2008 09 17 12 29 51 845 2008 09 15 Hit Hospital Chart2b
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CT
New benchmark helps monitor cumulative CT radiation dose
The findings highlight the need for systematic dose tracking and rigorous justification of imaging.
2026 02 13 Port Fractures Thumbnail
Radiation Oncology/Therapy
Study questions routine use of radiotherapy after bone surgery
2026 02 12 Wfumb Sertic Ceus Kidney Lesions Thumbnail
Ultrasound
CEUS outshines color Doppler imaging for indeterminate kidney lesions
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Womens Imaging
Women's Imaging MinnieCast, Episode 2: Risk-based vs. annual mammography screening, part 1
2026 02 12 Chest Ac2 Thumbnail
Digital X-Ray
Chest x-rays reveal atherosclerosis in patients undergoing amputations
More in Home
Digital mammograms yield more info for radiomics than synthetic images
By Amerigo Allegretto
Digital mammograms may be best for informing radiomics models that assess breast density.
February 25, 2025
Delineation workflow: The various steps of the contouring process: (a) the nipple is manually annotated (b) a reference point is placed 30 mm behind the nipple (c) 10 random theta/displacement values are selected to obtain the central point of each ROI (d) Regions of interest are placed on the image. (e) The resulting 10 ROIs obtained for a representative subject (viewing window [0 10000]). Images are published under a Creative Commons license (CC BY-NC-ND 4.0).
PET/CT predicts relapse in patients with ovarian cancer
By Will Morton
Pretreatment F-18 FDG-PET/CT scans may predict relapse in patients with advanced high-grade serous ovarian cancer.
February 24, 2025
Ovarian Cancer Thumbnail
Adding AI to brain MRI finds previously occult epilepsy lesions in kids
By Kate Madden Yee
Using an AI tool with brain MRI in children finds 64% of focal cortical dysplasias -- abnormalities linked to epilepsy -- that radiologists miss, researchers have reported.
February 24, 2025
Mri Scanner Kid
1 in 20 women around the world diagnosed with breast cancer
By Amerigo Allegretto
About one in 20 women globally are diagnosed with breast cancer and women living in low- to middle-income countries are at higher risk.
February 24, 2025
Breast Mammo
PET/CT reveals new infections in ICU patients
By Will Morton
F-18 FDG-PET/CT is a valuable approach for diagnosing unknown infections in intensive care unit (ICU) patients.
February 21, 2025
There are several conceivable advantages of F-18 FDG PET/CT over conventional imaging. Image A and B showing an example of the distinctive capability of the F-18 FDG PET/CT. A shows a fusion image of F-18 FDG PET/CT and low-dose CT and B an high resolution chest CT of a patient with an Aspergillus infection. The suspected aspergilloma is concealed on the high resolution CT due to the lung fluids and consolidation. Image C and D (fusion image of F-18 FDG PET/CT and low-dose CT and low-dose CT only, respectively) are examples of the ability to image inflammation while no concurrent abnormalities are visualized, in this case prostatitis (red arrows). Image E, a maximized intensity projection of F-18 FDG PET, shows a patient with lung infections and multiple muscle abscesses after MRSA sepsis. This is an illustrative example of a relevant dissemination investigation. Image and caption available for republishing under Creative Commons license (CC BY 4.0 DEED, Attribution 4.0 International) and courtesy of Annals of Intensive Care.
Ultrasound falls short for detecting endometrial cancer in Black women
By Amerigo Allegretto
Ultrasound-based strategies fall short of biopsy for detecting endometrial cancer in non-Hispanic Black women.
February 21, 2025
Ultrasound Diagnostic Control Panel 400
T2-weighted MRI shows promise for body composition analysis
By Kate Madden Yee
Using deep learning with T2-weighted MR imaging is a feasible way to assess patients' body composition, researchers have reported.
February 21, 2025
Fat Tissue Adipocytes
LUS reliable for care strategies in infants with RDS
By Amerigo Allegretto
Lung ultrasound (LUS) scoring is reliable for determining whether preterm newborns need surfactant for suspected respiratory distress syndrome (RDS).
February 20, 2025
1Each lung has been split into three parts. Each area has been given a score between 0 and 3. Score values are shown in Ultrasonograms to match 4 different patterns. During a longitudinal scan with a high-resolution linear probe, pictures of patterns were taken. The scores are as follows: 0 means A pattern, 1 means B pattern, 2 means severe B pattern, and 3 means extended consolidation. Images available for publishing under a creative commons license, CC BY-NC-ND 4.0.
PSMA-PET tracer performs well in clinical trial
By Will Morton
PET/CT imaging with a new gallium-68-based prostate cancer radiotracer shows promise for detecting recurrent metastatic disease.
February 20, 2025
(A) Representative maximum-intensity projection and selected PET/CT images (fused, PET and CT only) of patient with metastatic prostate cancer at 1 hour after injection. (B and C) Low uptake of Ga-68 PSMA-R2 in salivary and submandibular glands is also demonstrated. (D) Images show heterogeneous uptake of Ga-68 PSMA-R2 with varying degrees of intensity in multiple spine bone lesions (vertebral sclerotic lesion with intense PSMA-R2 expression at its periphery indicated with red arrow). HU = Houndsfield unit; SUVbw = body-weight SUV. Images and caption courtesy of the Journal of Nuclear Medicine.
CT best for diagnosing suspected wooden foreign objects in the eye
By Kate Madden Yee
CT imaging is best for diagnosing suspected intraorbital wooden foreign bodies, although MR imaging does offer valuable supplementary information.
February 20, 2025
A 7-year-old boy, imaged 15 hours post-injury. Axial CT images with soft tissue windows (WW/WL=350/50) (a) reveal a rod-shaped foreign body (white arrow) situated along the course of the right inferior rectus muscle. The soft tissue window demonstrates that the foreign body exhibits attenuation similar to orbital emphysema. Axial CT images (WW/WL=1000/−200) at the same level (b) show that the attenuation of the foreign body (white arrow) is markedly different from that of the air in the sinuses. Image and caption courtesy of Dapeng Hao, MD, also of the Affiliated Hospital of Qingdao University.
ACS: Fewer Black men are dying from cancer
By Liz Carey
Black men in the U.S. between the ages of 40 and 59 experienced a 65% to 67% decline in cancer mortality between 1999 and 2022, according to 2025 ACS statistics.
February 20, 2025
Cancer Cell Target2
Insurance influences which type of fibroid treatment a woman undergoes
By Kate Madden Yee
Whether a woman is covered by Medicare or by commercial insurance appears to influence the type of treatment she will likely undergo for uterine fibroids.
February 19, 2025
Fibroid
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