Despite a consensus regarding the essential protocol components of a rectal cancer MRI, substantial differences in image quality persist across institutions and vendor software/hardware platforms. In this review, we present image optimization strategies for rectal cancer MRI examinations, including but not...
Magnetic resonance imaging (MRI) has established itself as the primary method for local staging in patients with rectal cancer. This is due to several factors, most importantly because of the ability to assess the status of circumferential resection margin. There are several newer developments being...
Rectal bleeding was reported in 1.3–45% of cases according to Loeb et al. [34]. As is the case for hematuria, hematochezia is usually self-limiting and seldomly requires medical intervention. Rectal bleeding was significantly correlated with the number of biopsy cores obtained in the study by...
MRGB was performed using the UroStation system (Koelis; Grenoble, France), which features a workstation for segmentation of the prostate and the lesion, elastic image fusion technology between MR images and trans-rectal US (TRUS) images, and real-time 3D organ-tracking technology. Thin-slice ...
records were identified, and 1179 were screened after removal of duplicates. Of these, 33 articles were eligible for full-text screening. Finally, nine studies were included; two of these studies had ≤50 patients, and after protocol revision...
The protocol included axial T1-weighted imaging (3.0 × 0.6 × 0.6 mm, 32 cm FoV), axial and coronal T2-weighted imaging (3.0 × 0.47 × 0.47 mm, 18 cm FoV), diffusion-weighted imaging (DWI) with generation of apparent diffusion coefficient (ADC) maps (...
Multi-parametric MRI protocol Participants were imaged using a 1.5 T MRI scanner (Avanto; Siemens, Erlangen, Germany). With the patient supine, the manufacturers body coil was used for signal excitation and a six-element surface phased-array coil used for reception. To reduce peristalsis, 20 mg...
For example, an MRI-delineated prostate, allows dose escalation of 2–7 Gy while maintaining the same rectal wall dose compared with a CT-delineated prostate [24]. Similarly, in cervical cancer, dose escalation is possible using an MRI-informed target with an associated 10–20% survival gain ...
Treatment of rectal cuff inflammation (cuffitis) in patients with ulcerative colitis following restorative proctocolectomy and ileal pouch-anal anastomosis. Am J Gastroenterol 2004; 99:1527-1531 Article PubMed Google Scholar Huang C, Remzi FH, Dane B, et al. Reporting Templates for MRI and ...
During all fMRI experiments, animals were placed on a plastic holder, and their heads were fixed with a tooth bar and ear bars. Continuous physiological monitoring was performed using sensors of an MRI-compatible system (SA Instruments, Stony Brook, NY). Rectal temperature was maintained at ∼...