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Acta Radiologica Open
ISSN 2058-4601 · SAGE Publishing · 503 articles in the index
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Journal Article
CT referrals and cancer detection in patients referred by general practitioners with non-specific symptoms and signs of cancer: A retrospective study
Background In Denmark, since 2011-2012, a national cancer patient pathway (CPP) has been in place for patients presenting with non-specific signs or symptoms of and signs of cancer (NSSC). Many cancer patients initially do not display organ-specific alarm symptoms when examined by general…
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Journal Article
Missed and true interval cancers on digital breast tomosynthesis screening mammograms: radiologists’ assessment and artificial intelligence markings
Background Interval cancer, breast cancer detected after a negative screening examination but before the next scheduled appointment, represents a challenge in mammography screening programs due to less favorable histopathological characteristics compared to screen-detected cancer. Purpose To…
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Journal Article
Endovascular management of right gastroepiploic artery aneurysms and injuries
Background Right gastroepiploic artery lesions are rare but may cause life-threatening hemorrhage. They include not only aneurysms but also non-aneurysmal arterial injuries with diverse etiologies. Purpose To evaluate the clinical spectrum, embolization strategies, and outcomes of transcatheter…
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Journal Article
Temporal evolution of diffusion lacunae into thrombus: A case report with serial MRI and MR–pathologic correlation
We report a case demonstrating the evolution of diffusion lacunae (DL) into thrombus, supported by serial MRI and MR–pathologic correlation. A 36-year-old woman with a pregnancy achieved via frozen–thawed embryo transfer presented with complete placenta previa and vaginal bleeding. MRI at 27 weeks…
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Journal Article
Mapping outcomes in randomised radiology trials: Protocol for a scoping review
Introduction This scoping review aims to systematically map how outcomes are defined and operationalised in contemporary radiological randomised clinical trials (RCTs). The findings will inform a subsequent Delphi process to develop a core outcome set for clinical studies in radiology, including…
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Journal Article
Age predicts therapeutic outcome of imaging-guided sacroiliac joint injections, whereas osteoarthritis grade does not: A retrospective single-center study
Background Sacroiliac joint (SIJ) disorders are among the most common causes of chronic low back pain. Imaging-guided SIJ injections are widely used as an early diagnostic tool, with corticosteroid often added to provide a therapeutic component. Evidence of factors predicting the therapeutic…
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Journal Article
Transcatheter arterial embolization for gastroepiploic artery aneurysms: A single-center retrospective 12 case series
Background Gastroepiploic artery aneurysms (GEAAs) and their rupture are very rare but often serious. However, emergency management has yet to be standardized. Purpose To clarify the clinical features of GEAAs and outcomes of transcatheter arterial embolization (TAE). Materials and Methods This is…
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Journal Article
The effect of age and sex on T1, T2, and T2* relaxation time constants in cardiac MRI in healthy Finnish population
Background Magnetic resonance imaging (MRI) enables the non-invasive assessment of myocardial tissue properties through the T1, T2, and T2* relaxation mapping. Establishing population-specific normal reference values enhances diagnostic accuracy. Purpose To study the effect of sex and age on the…
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Journal Article
Intraoperative MRI for giant cell tumor of bone after denosumab and other selected tumors: A pilot study
Background Although intraoperative magnetic resonance imaging (iMRI) is well established in neurosurgery, its role in musculoskeletal oncology remains unclear. Purpose To assess the feasibility and safety of iMRI in bone and soft tissue tumor surgery, focusing on giant cell tumor of bone (GCTB)…
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Journal Article
3D steady-state free precession in fetal body MR imaging: A useful adjunctive sequence
Fetal magnetic resonance imaging (MRI) has become a valuable noninvasive method for evaluating congenital anomalies of the fetus and can serve as an important adjunct to the prenatal ultrasound, particularly where the ultrasound is unable to exclude or detect fetal abnormalities. This pictorial…
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Journal Article
Neural network assessment of aortic, iliac, renal, and mesenteric artery calcification in CTA: Normalized scoring framework and comparison to threshold-based method
Background Calcification of abdominal arteries is an important risk marker in vascular disease. Automated, objective quantification methods could improve reproducibility and reduce observer dependency in clinical practice. Purpose To develop and evaluate a deep learning method for quantifying…
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Journal Article
A retrospective study on diagnostic yield, tumor types, and complications of CT-guided bone biopsies
Background CT-guided percutaneous bone biopsy is a minimally invasive and effective procedure for evaluating and diagnosing bone lesions. Purpose To evaluate the diagnostic yield, tumor types, and complication rates of CT-guided percutaneous bone biopsy procedures at a single tertiary institution…
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Journal Article
Hidden in plain sight: Extrapulmonary manifestations of tuberculosis in Asia
Extrapulmonary tuberculosis represents 15–20% of all tuberculosis infections and can involve nearly any organ, earning tuberculosis a reputation as one of the great mimickers in medicine. Imaging plays a critical role in diagnosing extrapulmonary tuberculosis, which presents with a wide range of…
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Journal Article
Case report: Pancreatitis-associated polyarthritis, panniculitis, and bone infarcts in a patient with alcohol use disorder
Musculoskeletal complications secondary to pancreatitis, including polyarthritis, panniculitis, and bone infarction (Pancreatitis Panniculitis Polyarthritis syndrome), are rare and under-recognized. We report a case of a 31-year-old man with alcohol use disorder who initially presented with acute…
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Journal Article
Diffusion lacunae and T2 dark bands in placenta accreta spectrum: MR–pathologic correlation
A 41-year-old woman with placenta previa and a prior cesarean delivery presented with placenta accreta spectrum (PAS). MRI at 26 weeks of gestation demonstrated an intraplacental hypointense region on diffusion-weighted imaging corresponding to diffusion lacunae (DL). Additionally, irregular…
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Journal Article
A deep learning algorithm for radiographic measurements of the hip versus human CT measurements: An intermodality agreement study
Background Hip dysplasia (HD) is a prevalent cause of non-traumatic hip pain, which may result in osteoarthritis. Radiological measurements of HD exhibit variability based on reader and imaging modality, why it is important to know the agreement between different measurement methods. Purpose To…
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Journal Article
Diagnostic yield and complications of CT-guided biopsy of lung lesions as a radiological outpatient clinic procedure
Background Computerized tomography-guided transthoracic needle biopsy (CT-TTNB) plays an important role in the diagnostic work-up of lung lesions. The literature reports varying results on complication rates, severity of complications, and diagnostic yield. Purpose To evaluate CT-TTNB as a…
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Journal Article
Cardiac metastasis of a soft tissue sarcoma: Case report and review of literature
Cardiac metastases are the most frequent cardiac tumors. They can cause dysrhythmia, myocardial dysfunction, pericardial effusion, and heart failure. In decreasing order, the major primary malignancies associated with cardiac metastases are pleural mesothelioma, lung adenocarcinoma…
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Journal Article
Hyperintensity of the left piriform cortex and amygdala on T2-weighted FLAIR images in patients with probable Alzheimer’s disease correlates with cerebral cortical atrophy
Background The left piriform cortex and amygdala (PC&A) tend to be slightly hyperintense relative to the right PC&A on T2-weighted fluid-attenuated inversion recovery (T2W-FLAIR) images in patients with probable Alzheimer’s disease (pAD). This likely represents the antecedent and thus advanced…
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Journal Article
Left bundle branch block-induced pseudo-infarction: Cardiac MRI pitfall
Cardiac MRI serves as an indispensable tool for diagnosing and characterizing myocardial pathology. Late gadolinium enhancement (LGE) imaging enables assessing myocardial scar formation and regional fibrosis. Here, we present a case involving a young woman with congenital dilated cardiomyopathy…