T-staging of rectal cancer: accuracy of 3.0 Tesla MRI compared with 1.5 Tesla

Pigeons and MRI: Tesla vignettes.

N ikola Tesla's name is familiar to neuroradiologists, but few of us know why our profession and understanding of the brain are better because of him. His achievements were not universally recognized until 1960 (17 years after his death) when the Conference Generale des Poids et Mesures decided that the unit for measuring the magnetic field (B) should be called the " tesla. " The strength of th...

Rectal cancer: MRI assessment and staging

accuracy of mri in rectal cancer after preoperative neoadjuvant chemoradiotherapy

methods study on 34 patients diagnosed with rectal adenocarcinoma referred to oncology clinic was conducted. the treatment plan included 4050 cgy radiotherapy and 5fu, xeloda chemotherapy. all patients were assessed with 1/5 t mri 6 to 8 weeks after treatment. t1 and t2 images with sagittal, cronal and axial planes with and without contrast agent were obtained and interpreted by two radiologist...

Vestibular Effects of a 7 Tesla MRI Examination Compared to 1.5 T and 0 T in Healthy Volunteers

Ultra-high-field MRI (7 Tesla (T) and above) elicits more temporary side-effects compared to 1.5 T and 3 T, e.g. dizziness or "postural instability" even after exiting the scanner. The current study aims to assess quantitatively vestibular performance before and after exposure to different MRI scenarios at 7 T, 1.5 T and 0 T. Sway path and body axis rotation (Unterberger's stepping test) were q...

Reliability of Stereotactic Coordinates of 1.5-Tesla and 3-Tesla MRI in Radiosurgery and Functional Neurosurgery

OBJECTIVE The aims of this study are to identify interpersonal differences in defining coordinates and to figure out the degree of distortion of the MRI and compare the accuracy between CT, 1.5-tesla (T) and 3.0T MRI. METHODS We compared coordinates in the CT images defined by 2 neurosurgeons. We also calculated the errors of 1.5T MRI and those of 3.0T. We compared the errors of the 1.5T with...