Methods Consensus definitions of key pathologies and three heel enthesitis multi-reader scoring exercises were done, separated by discussion, training and calibration. First the tissue magnetisation is excited … The combined information provided by noncontrast T1W and T2W images, and early and late postgadoliniumT1W images, allows accurate assessment of a full range of abdominal and pelvic pathology. The data to create an MR image is obtained in a series of steps. In this chapter I will describe the basic gradient echo, spin echo and inversion recovery sequences used in MRI. CHAPTER FIVE MRI SEQUENCES 34 5 MRI SEQUENCES An MRI sequence is an ordered combination of RF and gradient pulses designed to acquire the data to form the image. A basic review of previous protocols for the region is followed by discussion of the most common imaging sequences. MRI sequences (truncated list) ... T2-weighted images are the most sensitive to pathology Tissues with short T2s appear dark tendons, ligaments, menisci, periosteum, cortical bone Tissues with long T2s are bright Since fluid has a long T2, joint effusions and muscle or bone marrow edema appear bright However, fat appears bright. OBJECTIVE: The objective of our study was to investigate the comparative effectiveness of different MRI sequences for the estimation of index lesion volume in patients with prostate cancer (PCa) compared with ground truth volume measured on whole-mount pathology. Introduction. However, newer MR sequences such as VIBE and CISS have been found to identify intra- and parasellar structures to a higher detail. This article aims to provide a brief overview of magnetic resonance imaging (MRI) of the brain for the clinician. The two basic types of MRI images are T1-weighted and T2-weighted images, often referred to as T1 and T2 images. Objective To develop and validate an enthesitis MRI-scoring system for spondyloarthritis/psoriatic arthritis, using the heel as model. Ultrasound (US) remains the first-line imaging modality for evaluating most penile pathology due to its low cost, widespread availability, lack of ionizing radiation, and ability to image in real time. Results Definitions for bone and soft tissue pathologies were agreed. MRI, using a variety of short duration sequences in multiple planes and pre- and postgadolinium administration allows increased sensitivity and specificity in disease detection. The MR sequences most widely used for intraoperative guidance are conventional T1-weighted CE MPRAGE sequences [20, 32]. According to our data of multimodality neuronavigation imaging, MPRAGE sequences tend to overestimate the parasellar extension of the … The timing of radiofrequency pulse sequences used to make T1 images results in images which highlight fat tissue within the body. As MRI …