Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Aug 2009
Case ReportsMagnetic resonance angiography findings of penile Mondor's disease.
A 53-year-old male was admitted to our Emergency Department affected by a contemporary high-flow priapism and induration on the dorsal penile surface, in consequence of a prior transrectal prostate biopsy performed 2 weeks earlier on the basis of a suspicion of prostate cancer. We describe a penile Mondor's disease (penile superficial dorsal vein thrombosis) of uncertain pathogenesis involving the penile superficial vein, and employing a careful diagnostic pathway by using magnetic resonance angiography (MRA). In the literature many reports described pulsed- and color-Doppler ultrasonography classical findings about penile Mondor's disease. For the first time we report the pathognomonic features of penile Mondor's disease on MRA, which may be considered a useful and comprehensive tool to deepen the analysis only in the case of a complex clinical picture such as the one presented.
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J Magn Reson Imaging · Aug 2009
Multi-echo acquisition of MR angiography and venography of the brain at 3 Tesla.
To improve the visibility of veins in susceptibility-weighted imaging (SWI) using a multi-gradient echo acquisition. ⋯ Multi-echo acquisition of MR angiography and venography demonstrated improved visibility of venous vasculature especially in regions with severe field inhomogeneity compared with conventional acquisition of SWI and dual-echo acquisition of MR angiography and venography.
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J Magn Reson Imaging · Aug 2009
Comparative Study Historical ArticleDetection of bone metastases in non-small cell lung cancer patients: comparison of whole-body diffusion-weighted imaging (DWI), whole-body MR imaging without and with DWI, whole-body FDG-PET/CT, and bone scintigraphy.
To prospectively compare the capability for bone metastasis assessment of whole-body diffusion-weighted imaging (DWI), magnetic resonance imaging (MRI) without and with DWI, [(18)F] fluoro-2-D-glucose positron emission tomography with computed tomography (FDG-PET/CT) and bone scintigraphy in non-small cell carcinoma (NSCLC) patients. ⋯ Whole-body MRI with DWI can be used for bone metastasis assessment of NSCLC patients as accurate as bone scintigraphy and/or PET/CT.
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J Magn Reson Imaging · Aug 2009
Mediastinal lymph nodes: assessment with diffusion-weighted MR imaging.
To prospectively determine whether the diffusion-weighted magnetic resonance imaging is useful to distinguish between malignant and benign mediastinal lymph nodes. ⋯ Diffusion-weighted MR with ADC value and signal intensity can be useful in differentiation of malignant and benign mediastinal lymph nodes.
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J Magn Reson Imaging · Aug 2009
Combined T2-weighted and diffusion-weighted MRI for diagnosis of urinary bladder invasion in patients with prostate carcinoma.
To retrospectively determine the diffusion-weighted imaging (DWI) characteristics and apparent diffusion coefficient (ADC) values of prostate carcinoma (PCa) with urinary bladder invasion, and to compare the accuracy of T2-weighted MRI alone and T2 combined with DWI for predicting urinary bladder invasion. ⋯ Urinary bladder invasion had lower ADC values compared with normal urinary bladder wall. T2 images plus DWI is significantly better than T2-weighted imaging alone in the detection of urinary bladder invasion in patients with PCa.