Principles and Applications of Dual Energy Computed Tomography in Neuroradiology

Gaddam, Durga Sivacharan; Dattwyler, Matthew; Fleiter, Thorsten; Bodanapally, Uttam K.

doi:10.1053/j.sult.2021.07.001

Cited by 5 publications

(4 citation statements)

References 64 publications

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“…It was demonstrated that iodine maps from 5-min delayed post-contrast DECT facilitate the segregation of membranes ( Figures 2 , 3 ). Iodine maps capture iodine and help in demonstrating the tissues that are enhanced with iodinated contrast, utilizing the concept of water-iodine base pairing in basis material decomposition (BMD) ( 35 ). Furthermore, the iodine map transforms and references all the remaining tissues that are not enhanced, including the brain parenchyma and hematoma, to water, providing the spectral contrast between the contrast-enhanced membranes and the adjacent tissues ( 35 ).…”

Section: Imaging Of Csdh Membranesmentioning

confidence: 99%

“…Recently, it was shown that DECT after contrast administration has the ability to estimate membrane exudation by using the quantification of iodine leaks through the immature capillaries in the external membrane ( 36 ). DECT, by having two attenuation measurements for iodine at two different x-ray spectra, enables the mathematical conversion of attenuation data into estimates of iodine concentration ( 35 ). The capacity to quantitatively analyze leaked iodine concentration within the subdural hematoma can be used as a surrogate of membrane exudation and the magnitude of angiogenesis in membranes.…”

Section: Imaging Of Csdh Membranesmentioning

confidence: 99%

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Advances in chronic subdural hematoma and membrane imaging

Chen,

Colasurdo,

Malhotra

et al. 2024

Front. Neurol.

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Chronic subdural hematoma (cSDH) is projected to become the most common cranial neurosurgical disease by 2030. Despite medical and surgical management, recurrence rates remain high. Recently, middle meningeal artery embolization (MMAE) has emerged as a promising treatment; however, determinants of disease recurrence are not well understood, and developing novel radiographic biomarkers to assess hematomas and cSDH membranes remains an active area of research. In this narrative review, we summarize the current state-of-the-art for subdural hematoma and membrane imaging and discuss the potential role of MR and dual-energy CT imaging in predicting cSDH recurrence, surgical planning, and selecting patients for embolization treatment.

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Section: Imaging Of Csdh Membranesmentioning

confidence: 99%

Section: Imaging Of Csdh Membranesmentioning

confidence: 99%

Advances in chronic subdural hematoma and membrane imaging

Chen,

Colasurdo,

Malhotra

et al. 2024

Front. Neurol.

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“…e deployment of low-energy VME in clinical practice reduces the required volume of contrast and radiation exposure. [8] A dissection commences as a tear in the tunica intima or directly in the tunica media. Mural hematoma is a hypoechoic area along the vessel wall on color duplex US.…”

Section: Imaging Of Penetrating Vascular Injury To the Head-and-neckmentioning

confidence: 99%

“…The deployment of low-energy VME in clinical practice reduces the required volume of contrast and radiation exposure. [ 8 ]…”

Section: Imaging Of Penetrating Vascular Injury To the Head-and-neckmentioning

confidence: 99%

Role of imaging in penetrating vascular injuries of the craniocervical region

Kee-Sampson

Gopireddy

Vulasala

et al. 2022

JCIS

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Penetrating vascular injury has become the topic of interest with increased gun violence in the United States. The radiologist plays a crucial role in establishing and systemizing the signs of vascular injury such as intimal flap, dissection, pseudoaneurysm, rupture, and arteriovenous fistula. Various imaging techniques such as ultrasound Doppler, computed tomographic angiography (CTA), magnetic resonance angiography, and conventional angiography are being employed based on clinical recommendations. Of all the techniques, CTA has been shown to embrace a promising role in identifying vascular injuries with superior sensitivity, specificity, and accuracy. An acquaintance of the imaging features has been shown to improve the approach to trauma patients in clinical settings. This article details the imaging modalities and the features of the head-and-neck penetrating vascular injury.

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