We reviewed the current literature and theories pertaining to the appearance of hemorrhage
on MR images. New theories were formulated to explain the etiology of spin-echo (SE) and …

MR scans were obtained at 0.5 and 1.0 T in 40 patients with 46 intracerebral hematomas
categorized as hyperacute (0-2 days), acute (3-7 days), subacute (8-14 days), and chronic …

The appearance of intracranial hemorrhage at magnetic resonance (MR) imaging depends
primarily on the age of the hematoma and the type of MR contrast (ie, T1 or T2 weighted). As …

BACKGROUND AND PURPOSE The detection of hemorrhage in acutely ill patients is
crucial to clinical management. The MR features that allow diagnosis of intracerebral …

The sequential degradation of hemoglobin in an evolving hemorrhage has been reviewed.
Physical mechanisms of proton relaxation enhancement that contribute to the clinical MR …

The T2 and pseudodensity (proportional to proton density) of intracranial hemorrhages and
normal white matter were calculated. The mean T2 (+/-standard deviation) was 120+/-62 for …

PURPOSE Recent papers have hypothesized that diamagnetic effects of clotting and
conformational changes in aging red blood cells immobilize the hemoglobin protein and …

Subacute intracranial hematomas have variable appearances on high-field MR images.
They are hyperintense on T1-weighted images owing to methemoglobin, but have variable …

Subacute intracranial hematomas have variable appearances on high-field MR images.
They are hyperintense on T1-weighted images owing to methemoglobin, but have variable …

This retrospective study was performed to describe the appearance of intracranial
hemorrhagic lesions on magnetic resonance (MR) imaging at 0.35 tesla using the spin-echo …