abstract background iron overload is the main transfusion related side effects in patients with transfusion dependent hemoglobinopathies. severe iron deposition in tissues leads to organ dysfunction. many organs can be affected such as heart, liver, and endocrine organs. cardiac failure and liver fibrosis are the consequent of iron overload in transfusion dependent hemoglobinopathy. magnetic re...

BACKGROUND Conventional magnetic resonance imaging (MRI) has relatively long scan times for routine examinations, and the signal intensity of the images is related to the specific MR scanner settings. Due to scanner imperfections and automatic optimizations, it is impossible to compare images in terms of absolute image intensity. Synthetic MRI, a method to generate conventional images based on ...

Introduction: At 7T the B0 field has a strong effect on MR imaging. T2* weighted gradient echo scans have revealed surprising variation in image intensity in white matter [1]. Various mechanisms have been proposed, including differences in iron concentration or myelin density in various white matter fiber bundles or variation in density and orientation of venous micro-vascular elements [1]. Tis...

BACKGROUND Recent studies, performed with the use of a commercially available diffusion weighted imaging (DWI) sequence, showed that they are sensitive to the increase of water content in the myocardium and may be used as an alternative to the standard T2-weighted sequences. The aim of this study was to compare two methods of myocardial edema imaging: DWI and T2-TIRM. METHODS The study includ...

A 66-year old male was admitted for indications of a cardiac tumour. Chest magnetic resonance imaging (MRI) showed a hyper-vascular tumour on the pericardium (Fig. 1A–C). A cardiac three-dimensional (3D) computed tomography (CT) shows that the tumour was located exactly on a coronary artery (Fig. 2). An open biopsy proved that the metastasis originated in renal cell carcinoma. Figure 1: Chest M...

Functional imaging [diffusion-weighted imaging (DWI) and dynamic contrast enhancement (DCE)] techniques combined with T2-weighted (T2W) and chemical-shift imaging (CSI), with or without urography, constitutes a comprehensive multiparametric (MP) MRI protocol of the kidneys. MP-MRI of the kidneys can be performed in a time-efficient manner. Breath-hold sequences and parallel imaging should be us...

The purpose of our study was to compare T2-weighted breath-hold fast spin-echo sequence (BHFSE) and high-resolution dynamic MR imaging (HR-DMRI) in the detection of hepatocellular carcinoma (HCC). Short and long T2-weighted BHFSE sequences and biphasic HR-DMRI including arterial-dominant and delayed phase images with a phased-array body coil were performed in 30 consecutive patients with 37 HCC...

BACKGROUND AND PURPOSE Current T2-weighted imaging takes >3 minutes to perform, for which the ultrafast transition into driven equilibrium (TIDE) technique may be potentially helpful. This study qualitatively and quantitatively evaluates the imaging of transition into driven equilibrium of the balanced steady-state free precession (TIDE) compared with TSE and turbo gradient spin-echo on T2-weig...

OBJECTIVE This study aimed to compare the accuracy of rectal cancer restaging after neoadjuvant therapy with 3D CUBE sequence with 2D T2-weighted fast spin-echo (FSE) sequence. METHODS This retrospective study comprised 72 patients with rectal cancer confirmed by colonoscopy and biopsy. After neoadjuvant therapy, all patients underwent pelvic magnetic resonance imaging (MRI) examination at 1....

Purpose ; To describethe MR features of intraspinal cysticercosis. Materials and Methods ; Medical records and MR images of four cases of intraspinal cysticercosis were retrospectively reviewed. The MR findings were described with regard to the location and signal intensity of the lesions, contrast enhancement, presence or absence of associated intracranial cysticerci , and otherfindings. Resul...