Comparison of High-Field Magnetic Resonance Imaging with Computed Tomography in the Evaluation of Blunt Renal Trauma

One hundred neonates determined prospectively to be at risk for neurologic handicap underwent magnetic resonance imaging with a high-field (1.5 T) imager. Thirty-three demonstrated a total of 37 lesions consistent with hypoxic-ischemic encephalopathy, including periventricular leukomalacia (n = 12), basal ganglia hemorrhage (n = 5), multicystic encephalomalacia (n = 5), and focal parenchymal hemorrhage (n = 15). Diagnoses by ultrasonography and computed tomography were compared with those by magnetic resonance imaging in 29 and 17 infants, respectively. Ultrasonography agreed more frequently with magnetic resonance imaging than did computed tomography. Ultrasonography detected 79% of lesions demonstrated by magnetic resonance imaging whereas computed tomography detected only 41%. Periventricular leukomalacia was seen most often in preterm infants, basal ganglia hemorrhage and multicystic encephalomalacia primarily occurred in term infants, and focal parenchymal hemorrhage occurred at all gestational ages. Basal ganglia hemorrhage and multicystic encephalomalacia were strongly associated with histories of perinatal asphyxia, seizures, and early abnormal neurologic status. All infants with basal ganglia hemorrhage (5/5) and multicystic encephalomalacia (5/5) and the majority with periventricular leukomalacia (9/12) and focal parenchymal hemorrhages (9/15) had developmental abnormalities at discharge.

Download Full-text

Comparison of image quality and in vivo appearance of the normal equine nasal cavities and paranasal sinuses in computed tomography and high field (3.0 T) magnetic resonance imaging

BMC Veterinary Research ◽

10.1186/s12917-016-0643-6 ◽

2016 ◽

Vol 12 (1) ◽

Cited By ~ 9

Author(s):

Joachim Kaminsky ◽

Astrid Bienert-Zeit ◽

Maren Hellige ◽

Karl Rohn ◽

Bernhard Ohnesorge

Keyword(s):

Magnetic Resonance Imaging ◽

Computed Tomography ◽

Magnetic Resonance ◽

Image Quality ◽

Paranasal Sinuses ◽

High Field ◽

Resonance Imaging ◽

Nasal Cavities ◽

3.0 T

Download Full-text

Comparison of computed tomography and high-field (3.0 T) magnetic resonance imaging of age-related variances in selected equine maxillary cheek teeth and adjacent tissues

BMC Veterinary Research ◽

10.1186/s12917-017-1200-7 ◽

2017 ◽

Vol 13 (1) ◽

Cited By ~ 5

Author(s):

Christin Schoppe ◽

Maren Hellige ◽

Karl Rohn ◽

Bernhard Ohnesorge ◽

Astrid Bienert-Zeit

Keyword(s):

Magnetic Resonance Imaging ◽

Computed Tomography ◽

Magnetic Resonance ◽

High Field ◽

Resonance Imaging ◽

Age Related ◽

3.0 T

Download Full-text

Comparison of postmortem whole‐body contrast‐enhanced microfocus computed tomography and high field magnetic resonance imaging of human fetuses

Ultrasound in Obstetrics and Gynecology ◽

10.1002/uog.24827 ◽

2021 ◽

Author(s):

Y. Dawood ◽

C. Honhoff ◽

A.‐S. Post ◽

S. D. Roosendaal ◽

B. F. Coolen ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Computed Tomography ◽

Magnetic Resonance ◽

High Field ◽

Whole Body ◽

Human Fetuses ◽

Resonance Imaging ◽

Contrast Enhanced ◽

Microfocus Computed Tomography

Download Full-text

Prospective Observations of 100 High-Risk Neonates by High-Field (1.5 Tesla) Magnetic Resonance Imaging of the Central Nervous System: I. Intraventricular and Extracerebral Lesions

PEDIATRICS ◽

10.1542/peds.87.4.421 ◽

1991 ◽

Vol 87 (4) ◽

pp. 421-430

Author(s):

Susan E. Keeney ◽

Eugene W. Adcock ◽

Craig B. McArdle

Keyword(s):

Magnetic Resonance Imaging ◽

Computed Tomography ◽

Central Nervous System ◽

Nervous System ◽

Magnetic Resonance ◽

Intraventricular Hemorrhage ◽

High Field ◽

Resonance Imaging ◽

Neurodevelopmental Delay ◽

The Central Nervous System

The results of observations of the first 100 neonates at the University of Texas Health Science Center (Houston) who received magnetic resonance imaging of the central nervous system by means of a high-field image (1.5 T) are reported. All were assessed prospectively to be at risk for neurodevelopmental delay. This first report specifically addresses the appearance of primarily hemorrhagic intracranial lesions, including intraventricular hemorrhage (n = 28), and extracerebral lesions, which include 3 cases of venous sinus thrombosis (n = 20). The signal intensities of hemorrhage underwent a characteristic evolution with time with only minor variations in the study group. Magnetic resonance imaging detected direct evidence of hemorrhage for up to 2 months, but hemosiderin was detected as a late indicator of hemorrhage for up to 9 months. Magnetic resonance imaging was equal in benefit to head ultrasonography and computed tomography for the diagnosis of intraventricular hemorrhage, but magnetic resonance imaging was also able to approximate the time of onset of hemorrhage. Magnetic resonance imaging was superior for the evaluation of extracerebral hemorrhage; ultrasonography failed to detect any of these lesions and computed tomography detected only 3 of 7. Short-term neurological abnormality was assessed, but the ability of magnetic resonance imaging to predict long-term neurodevelopmental delay is unknown and is the subject of an ongoing project.

Download Full-text