Hjalmer Danielson

IS
Big data and its relevance to medical imaging
"Big data" is a buzzword you'll be seeing a lot over the next few years as your corporate executive team and healthcare vendors incorporate it into their business development activities. Hjalmer Danielson from Ascendian Healthcare Consulting helps give some definition to the term in this new column.
November 7, 2013
2013 05 31 14 24 53 75 Ascendian Logo 200
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Stroke Evt
Interventional
EVT promising in patients with extracranial ICA occlusions
Endovascular thrombectomy (EVT) and best medical treatment are both effective and safe options for patients with acute extracranial internal carotid artery occlusions.
Images depict a 49-year-old female participant with cryptogenic cirrhosis who presented with a 3.2-cm liver lesion. This biopsy-confirmed hepatocellular carcinoma (HCC) with an initial categorization of Liver Imaging Reporting and Data System (LI-RADS) category LR-4 (probably HCC) at CT was upgraded to LR-5 (definitely HCC) at contrast-enhanced ultrasound (CEUS). (A) Precontrast CT images in the liver show vague hypoattenuation in the medial left hepatic lobe (arrows). (B) Arterial phase images demonstrate no definite arterial phase hyperenhancement (arrows). (C) Washout and an enhancing capsule (arrows) on a late-phase image resulted in an LR-4 categorization. (D) B-mode ultrasound shows a round hypoechoic nodule (arrows). (E) An early-phase CEUS image shows clear arterial-phase hyperenhancement (arrows); (F) No washout at one minute (arrows), and (G) late, mild washout at four minutes (arrows) resulted in a CEUS LR-5 categorization.
Ultrasound
CEUS resolves indeterminate CT, MRI liver observations
Ctca
Molecular Imaging
PET/CT can rule out CAV in heart transplant patients
Lung Ct Images
CT
Machine learning can predict immunotherapy response in NSCLC patients
Coffta Sandy Thumbnail
Economics
Current topics in mammography
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EVT promising in patients with extracranial ICA occlusions
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Endovascular thrombectomy (EVT) and best medical treatment are both effective and safe options for patients with acute extracranial internal carotid artery occlusions.
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Stroke Evt
CEUS resolves indeterminate CT, MRI liver observations
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Images depict a 49-year-old female participant with cryptogenic cirrhosis who presented with a 3.2-cm liver lesion. This biopsy-confirmed hepatocellular carcinoma (HCC) with an initial categorization of Liver Imaging Reporting and Data System (LI-RADS) category LR-4 (probably HCC) at CT was upgraded to LR-5 (definitely HCC) at contrast-enhanced ultrasound (CEUS). (A) Precontrast CT images in the liver show vague hypoattenuation in the medial left hepatic lobe (arrows). (B) Arterial phase images demonstrate no definite arterial phase hyperenhancement (arrows). (C) Washout and an enhancing capsule (arrows) on a late-phase image resulted in an LR-4 categorization. (D) B-mode ultrasound shows a round hypoechoic nodule (arrows). (E) An early-phase CEUS image shows clear arterial-phase hyperenhancement (arrows); (F) No washout at one minute (arrows), and (G) late, mild washout at four minutes (arrows) resulted in a CEUS LR-5 categorization.
PET/CT can rule out CAV in heart transplant patients
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Cardiac PET/CT scans can effectively rule out moderate to severe cardiac allograft vasculopathy (CAV) in heart transplant patients.
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Ctca
Machine learning can predict immunotherapy response in NSCLC patients
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Lung Ct Images
Current topics in mammography
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Sandy Coffta of Healthcare Administrative Partners discusses changes in reporting and reimbursement for mammography exams.
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Coffta Sandy Thumbnail
Surgeon General's alcohol advisory puts patient counseling at the fore
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Patient communication and education may be key for radiologists in the wake of the Surgeon General’s advisory on alcohol-related cancer risk.
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Wine Red Glass 400
FAPI-PET shows promise for imaging gastric cancers
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Fapi Pet Gastric Cancer Thumbnail
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Contrast Injector
ACS: Cancer mortality continues to drop
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Cancer mortality rates continue to drop -- although incidence of the disease is rising in women, according to an annual study released by the ACS.
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Cancer Cell Target2
POCUS useful for diagnosis of retained conception tissue
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Point-of-care ultrasound (POCUS) can be a useful tool for diagnosing the presence of retained conception tissue.
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Ultrasound Portable
Top 5 predictions for the imaging IT and AI markets in 2025
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2025 Trends Concept
Simulated contrast-enhanced MRI helps assess prostate cancer
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Simulated contrast-enhanced MR images from noncontrast sequences using deep learning show promise for assessing clinically significant prostate cancer.
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2025 01 14 Radiology Huang Figure5 Thumbnail
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