conclusion due to the significant improvement in the treatment of early stage of hcc compared to the previous decade, we suggest a fast, non-invasive, more accurate, but more expensive method (haste, op/ip t1w sequences mri combined with dwi) rather than us for the screening of hcc in liver cirrhosis. results combination of limited sequences mri and dwi had the highest accuracy (94.79%) followe...

Congenital mesoblastic nephroma (CMN) is the most common renal tumor in the first year of life. Here, we present unique findings of cellular variant CMN seen on prenatal and postnatal MRI with diffusion-weighted imaging (DWI).The mass was well-visualized on prenatal MR DWI with diffusion restriction in the solid portions. After excision of the mass, follow-up whole body MRI with DWI helped iden...

Purpose: Commonly used diffusion weighted (DW) imaging such as DW spin echo (SE) type echo planar imaging (DW-SE-EPI) is known to be a snapshot-like acquisition and to have a relatively high signal-to-noise ratio. Spiral MRI sequence (SPIRAL) has characteristics similar to these of EPI, but it has rarely been used for diffusion-weighted imaging (DWI). In vivo DW-SPIRAL of the rat brain has almo...

BACKGROUND A few studies have found that abnormal findings on diffusion-weighted magnetic resonance imaging (MRI) are useful for diagnosing cerebral fat embolism in the acute stage. CASE REPORT We applied serial MRI to a case of cerebral fat embolism with cognitive impairment lasting for 2 months. Although marked resolution of the previous abnormal findings was demonstrated, T2*-weighted grad...

OBJECTIVE To determine the evolutionary MRI appearance of renal cell carcinoma (RCC) following cryoablation. METHODS For this institution review board-approved study, we recruited patients with biopsy-proven RCC and treated them with percutaneous cryoablation between November 2009 and October 2014. Two radiologists retrospectively reviewed the pre-procedural and follow-up MRI. The findings in...

BACKGROUND AND PURPOSE Lesion volume measurements in disabling ischemic stroke have excellent reliability, but it is not clear whether this is also true for small lesions. We assessed the reliability of measuring baseline and follow-up lesion volumes in transient ischemic attack and minor stroke. METHODS Patients who presented with a transient ischemic attack or minor stroke (NIHSS < or = 3) ...

White matter myelination is essential to postnatal neurologic maturation and can be accurately evaluated by magnetic resonance imaging (MRI). Accordingly, MRI pulse sequences should be optimized for detection of myelin in young children. T1-weighted images are most useful during the first year of life. These demonstrate myelin-related white matter hyperintensity consequent to increasing cholest...

OBJECTIVES To describe a case of metastatic renal cell carcinoma (RCC) masquerading as a jugular foramen paraganglioma (JP). To compare imaging findings between skull base metastatic RCC and histologically proven paraganglioma. METHODS A case of unexpected metastatic skull base RCC is reviewed. Computed tomography (CT) and magnetic resonance imaging (MRI) were compared between 3 confirmed cas...

BACKGROUND Magnetic resonance imaging (MRI) may show discrete splenium abnormalities; however, the implications of this radiologic finding are unclear. OBJECTIVE To describe causes, clinical presentations, and prognoses of midline splenium changes evident on MRI. DESIGN Retrospective case series. SETTING Teaching hospital. PATIENTS Medical records of 9 patients with MRI-noted splenium c...

BACKGROUND AND PURPOSE Because the new era of preclinical stroke research demands improvements in validity and generalizability of findings, moving from single site to multicenter studies could be pivotal. However, the conduct of magnetic resonance imaging (MRI) in stroke remains ill-defined. We sought to assess the variability in the use of MRI for evaluating lesions post stroke and to examine...