European radiology
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To demonstrate the potential benefits of biochemical axial T2 mapping of intervertebral discs (IVDs) regarding the detection and grading of early stages of degenerative disc disease using 1.5-Tesla magnetic resonance imaging (MRI) in a clinical setting. ⋯ Axial T2 mapping is effective to detect early stages of degenerative disc disease. There is a potential benefit of axial T2 mapping as a diagnostic tool, allowing the quantitative assessment of intervertebral disc degeneration.
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To review our institutional experience with cervical arterial injuries remote from the penetrating tract seen in the setting of craniofacial gunshot injuries. ⋯ The incidence of "indirect" cervical arterial injuries with craniofacial gunshot wounds is comparable to or slightly higher than those seen in pure blunt trauma. Screening patients with craniofacial gunshot injuries with CT angiography may yield unexpected cervical vascular injuries remote from the penetrating tract. The significance and optimal therapy of these injuries are unknown. Additional experience will be needed to determine the significance of "indirect" cervical arterial injuries in the setting of craniofacial gunshot wounds.
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Comparative Study
Triple-negative invasive breast cancer on dynamic contrast-enhanced and diffusion-weighted MR imaging: comparison with other breast cancer subtypes.
To determine the MRI features of triple-negative invasive breast cancer (TNBC) on dynamic contrast-enhanced MR imaging (DCE-MRI) and diffusion-weighted MR imaging (DWI) in comparison with ER-positive/HER2-negative (ER+) and HER2-positive cancer (HER2+). ⋯ • Triple-negative breast cancers (TNBC) lack oestrogen/progesterone receptors and HER2 expression/amplification. • TNBCs are larger, better defined and more necrotic than conventional cancers. • On MRI, necrosis yields high T2-weighted signal intensity and ADCs. • High ADC values can be useful in diagnosing TNBC.
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To investigate high resolution computed tomography (HRCT) and pulmonary function indices (PFTs) for determining prognosis in patients with chronic fibrotic hypersensitivity pneumonitis (CHP). ⋯ • HRCT is increasingly used to assess chronic fibrotic hypersensitivity pneumonitis. • HRCT patterns are superior to pulmonary function tests for predicting mortality. • Extensive traction bronchiectasis strongly predicts poor survival in chronic hypersensitivity pneumonitis.
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To prospectively evaluate dose reduction and image quality characteristics of chest CT reconstructed with model-based iterative reconstruction (MBIR) compared with adaptive statistical iterative reconstruction (ASIR). ⋯ • Model-based iterative reconstruction (MBIR) creates high-quality low-dose CT images. • MBIR significantly improves image noise and artefacts over adaptive statistical iterative techniques. • MBIR shows greater potential than ASIR for diagnostically acceptable low-dose CT. • The prolonged processing time of MBIR may currently limit its routine use in clinical practice.