Intracranial Hemorrhage Imaging

Saad, Amin F.; Chaudhari, Ruchir; Fischbein, Nancy J.; Wintermark, Max

doi:10.1053/j.sult.2018.01.003

Cited by 15 publications

(5 citation statements)

References 18 publications

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“…In the present study, hemorrhagic lesions in T2 * -GRE showed hyperintensity compared to the spinal cord. In human reports, this contradiction was expected because of limitations of the low field magnet, but we changed the sequence parameters during the study period in order to enhance the susceptibility artifact [1415], however, this attempt was unsuccessful. T2 * -GRE sequences in intracranial hemorrhage were reported to show susceptibility artifacts of hemorrhagic lesions in both 1.5T magnetic fields and 0.6T magnetic fields, in contrast to the results of the present study [16].…”

Section: Discussionmentioning

confidence: 99%

Chronological low field magnetic resonance appearance of canine spinal epidural hemorrhage model

et al. 2019

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The magnetic resonance (MR) features of spinal epidural hemorrhage depending with the passage of time have a meaning in veterinary medicine. The aim of this study is to propose the characteristic MR image of spinal epidural hemorrhage using a lower field permanent magnet scanner in dogs. A total of 8 clinically normal beagle dogs, weighing about 9 kg, were allocated. After a baseline MR examination, spinal epidural hemorrhage was created. MR scanning was executed on days 1, 2, 3, 4, 5, 10, 15, 20, 25, and 30 using 0.25 Tesla low field MR. Transverse MR images were attained for image examination. T2W, T1W, fluid-attenuated inversion recovery (FLAIR), short tau inversion recovery (STIR), and T2 * -GRE sequences were used. Images were compared subjectively for signal transition assessment. Spinal epidural hemorrhage models were produced positively in 8 dogs at the T12 to L2 region. Initially, the spinal cord and epidural lesions were hyper-intense on T2W and T1W images. On T2W, FLAIR and STIR images, the spinal cord lesion was steadily hyperintense. No significant and consistent hypointense signal indicating hemorrhage was seen on T2 * -GRE images. This study result suggests that relatively consistent hyperinstensity on T2 and FLAIR is observed for 30 days, meanwhile T2 * -GRE imaging is less useful in hemorrhage detection.

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Section: Discussionmentioning

confidence: 99%

Chronological low field magnetic resonance appearance of canine spinal epidural hemorrhage model

et al. 2019

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“…They are usually located in the frontal and temporal lobes [1,8]. Acute intracranial hemorrhage appears on CT as a region of increased density owing to the linear relationship between attenuation and hematocrit, predominately owing to hemoglobin concentration [18]. With the widely used of the CT, clinicians and researchers are able to qualitatively and quantitatively describe the characteristics of a hemorrhage to guide interventions and treatments.…”

Section: Intracerebral Hemorrhagementioning

confidence: 99%

“…MRI is the study of choice to further characterize intracranial hemorrhage, offering greater sensitivity in the detection of hemorrhage during all stages of hematoma evolution as well as the ability to more accurately assess the temporal evolution of hemorrhage. MRI also allows more specific investigation of the etiology of intracranial hemorrhage [18]. Indications: MRI is not indicated during the initial management of acute mild TBI.…”

Section: Magnetic Resonance Imagingmentioning

confidence: 99%

Acute phase of traumatic brain injury

Bolaño-Romero,

Gaitan-Herrera,

Galarza-Garrido

et al. 2022

roneuro

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In neurotrauma, diagnostic imaging plays a fundamental role in the early detection of treatable injuries or the mitigation of secondary injuries. Currently, the routine imaging techniques used in the setting of a head trauma patient include non-contrast computed tomography (CT), computed tomography angiography (CTA), conventional magnetic resonance imaging (MRI) with T1, T2 or diffusion imaging. Of the above mentioned, CT is superior to MRI in terms of speed of examination, due to the greater access to portable equipment in the patient's environment, which reduces the risk of secondary complications at the time of transfer to the radiology department. Nevertheless, MRI provides a much higher quality of images than CT. MRI is not indicated for the diagnosis of acute brain injury, but if the results of CT without contrast are normal, and neurological manifestations are present, it is indicated. As a result, CT should be the first study requested to the imaging service by the medical team in charge of the patient during the acute phase of the traumatic brain injury. The main objective of this review is to present some of the advantages and disadvantages offered by the different diagnostic imaging methods when approaching and managing brain-injured patients, with emphasis on the acute phase of trauma.

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“…ICH is the result of extravasation of blood from an artery, capillary or vein. The incidence of ICH is approximately 25 per 100,000 person-years, and ICH mortality is about 40% within 30 days, making this disease one of the most critical acute emergencies [3][4][5]. Establishing the true diagnosis of ICH in the emergency department is of paramount importance in terms of time management, prevention of complications and survival.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2023

Ann Clin Anal Med

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Aim: In this study, we aimed to compare data from an infrascanner device that can be used at the bedside with infrared technology with data from intracranial computed tomography and to investigate the utility of the new device in patients presenting to the emergency department with head trauma or neurologic symptoms suggesting ICH. Material and Methods: The measurement was made beginning from the left frontal region of the head and continuing in the right frontal, left temporal, right temporal, left parietal, right parietal, left occipital and right occipital regions. Patient demographics such as age and gender, GCS, time between the incident and evaluation with CT and infrascanner in the emergency department, diagnosis reported by CT and Infrascanner and outcomes were recorded. Results: A total of 173 patients were included in this study, 73 of them with ICH and 100 were control subjects. The mean GCS score was 11.44±4.03 in the ICH and 14.16±1.07 in the control group with a significant difference between both groups (p<0.01). When CT scan findings were taken as reference values, the Infrascanner Model 1000 device had a sensitivity of 84.9%, specificity of 30%, positive predictive value of 46.9% and negative predictive value of 73.1% in detecting ICH. Discussion: The results of this study indicate that the infrascanner model 1000 device significantly records specificity and sensitivity values when used immediately after an incident.

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Intracranial Hemorrhage Imaging

Cited by 15 publications

References 18 publications

Chronological low field magnetic resonance appearance of canine spinal epidural hemorrhage model

Chronological low field magnetic resonance appearance of canine spinal epidural hemorrhage model

Acute phase of traumatic brain injury

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