Clinical imaging
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Comparative Study
Comparing lesion detection of infratentorial multiple sclerosis lesions between T2-weighted spin-echo, 2D-FLAIR, and 3D-FLAIR sequences.
Infratentorial lesions in patients with multiple sclerosis are associated with long-term disability. Two-dimensional fluid-attenuated inversion recovery demonstrates poor infratentorial lesion detection when compared to T2-weighted spin echo. Evidence of improved detection with 3D fluid-attenuated inversion recovery has been conflicting. This study compares the infratentorial lesion detection performance, observer performance, and signal and contrast properties between T2-weighted spin echo, 2D, and 3D fluid-attenuated inversion recovery. ⋯ The 3D fluid-attenuated inversion recovery sequence addresses the disadvantage of poor infratentorial lesion detection on 2D, while still maintaining the advantage over T2-weighted spin echo in the detection of lesions adjacent to the cerebrospinal fluid.
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To investigate the relationship between diffusion tensor imaging (DTI) parameters such as fractional anisotropy (FA), mean diffusivity (MD), relative anisotropy (RA), and volume ratio (VR) values, and prognostic factors of invasive breast cancer. ⋯ DTI parameters of malignant masses in breast cancer patients correlate with tumor size, lymph node status, histologic grade, lymphovascular invasion, Ki-67, CERB B2, ER, and PR.
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The purpose was to evaluate the clinical value of PETRA sequence for the diagnosis of internal derangement of the knee. ⋯ Using PETRA images along with conventional 2D FSE images can increase the accuracy of assessing internal derangements of the knee and, specifically, meniscal lesions.
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A subcutaneous implantable cardioverter-defibrillator (S-ICD) is an alternative device for prevention of sudden cardiac death, without any leads within the heart. Patients implanted with any type of ICD may need catheter ablation of ventricular tachycardia (VT) to reduce the overall arrhythmia burden (e.g., recurrent monomorphic VT) and lower the incidence of painful shocks induced by the device. Late gadolinium enhancement (LGE) MRI is a useful pre-test for guiding VT ablation, because it can be used to map myocardial scar and produce better outcomes. ⋯ Clinical standard LGE MRI produced severe image artifacts, rendering it useless. In contrast, wideband LGE MRI provided unobstructed viewing of myocardial scarring. This case illustrates the usefulness of wideband LGE MRI for assessment of myocardial scarring in a patient with an MR-conditional S-ICD.
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Case Reports
Sonographic findings of early pregnancy in the rudimentary horn of a unicornuate uterus: A two case report.
Congenital uterine anomalies have a profound impact on reproductive outcomes. The unicornuate uterus accounts for approximately 20% of all congenital uterine anomalies. ⋯ Understanding the sonographic appearance of early pregnancy within the rudimentary horn of the unicornuate uterine configuration is imperative for appropriate and timely clinical management. We present two cases of pregnancy in the rudimentary horn of a unicornuate uterus diagnosed sonographically in the first trimester.