Results 141 to 150 of about 5,344,290 (172)
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Japanese Journal of Radiology, 2019
To evaluate the image quality and lesion visibility of virtual monoenergetic images (VMIs) reconstructed using a new monoenergetic reconstruction algorithm (nMERA) for evaluation of breast cancer.Forty-two patients with 46 breast cancers who underwent 4-phasic breast contrast-enhanced computed tomography (CT) using dual-energy CT (DECT) were enrolled ...
Kanako, Okada +12 more
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To evaluate the image quality and lesion visibility of virtual monoenergetic images (VMIs) reconstructed using a new monoenergetic reconstruction algorithm (nMERA) for evaluation of breast cancer.Forty-two patients with 46 breast cancers who underwent 4-phasic breast contrast-enhanced computed tomography (CT) using dual-energy CT (DECT) were enrolled ...
Kanako, Okada +12 more
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Reduction of beam hardening artifacts using virtual monoenergetic imaging
2017Aims and objectives Methods and materials Results Conclusion Personal information ...
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European Journal of Radiology
Accurate preoperative evaluation of rectal cancer is essential for staging and treatment planning. Low-energy virtual monoenergetic imaging (VMI) enhances iodine contrast in dual-energy computed tomography (DECT) but increases image noise. Deep learning image reconstruction (DLIR) may mitigate this issue, but its effectiveness for 40 keV VMI in rectal ...
Haini Zhang +12 more
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Accurate preoperative evaluation of rectal cancer is essential for staging and treatment planning. Low-energy virtual monoenergetic imaging (VMI) enhances iodine contrast in dual-energy computed tomography (DECT) but increases image noise. Deep learning image reconstruction (DLIR) may mitigate this issue, but its effectiveness for 40 keV VMI in rectal ...
Haini Zhang +12 more
openaire +2 more sources
Academic radiology, 2019
This study aims to determine the optimal photon energy for image quality of the pulmonary arteries (PAs) on dual-energy computed tomography (CT) pulmonary angiography (CTPA) utilizing low volumes of iodinated contrast.The study received institutional review board exemption and was Health Insurance Portability and Accountability Act compliant. Adults (n
Bari, Dane +9 more
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This study aims to determine the optimal photon energy for image quality of the pulmonary arteries (PAs) on dual-energy computed tomography (CT) pulmonary angiography (CTPA) utilizing low volumes of iodinated contrast.The study received institutional review board exemption and was Health Insurance Portability and Accountability Act compliant. Adults (n
Bari, Dane +9 more
openaire +1 more source
Medical Physics, 2017
PurposeDual‐energy computed tomography virtual monoenergetic imaging (VMI) at 40 keV exhibits superior contrast‐to‐noise ratio (CNR), although practicing radiologists do not consistently prefer it over VMI at 70 keV due to high perceivable noise. We hypothesize that the presentation of 40 keV VMI may be compromised using window settings (i.e., window ...
Wanyi, Fu +7 more
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PurposeDual‐energy computed tomography virtual monoenergetic imaging (VMI) at 40 keV exhibits superior contrast‐to‐noise ratio (CNR), although practicing radiologists do not consistently prefer it over VMI at 70 keV due to high perceivable noise. We hypothesize that the presentation of 40 keV VMI may be compromised using window settings (i.e., window ...
Wanyi, Fu +7 more
openaire +2 more sources
Using virtual monoenergetic images in Karhunen–Loève domain to differentiate lesion pathology
Medical Imaging 2023: Computer-Aided Diagnosis, 2023Yongfeng Gao +4 more
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RETRACTED: Visibility of bronchial arteries using virtual and advanced virtual monoenergetic imaging
Acta Radiologica, 2020Takakiyo Nomura +4 more
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Japanese Journal of Radiological Technology
A head computed tomography angiography (CTA) is widely used for diagnosing cerebrovascular diseases and preoperative vascular assessment. A photon-counting detector CT (PCD-CT)enables virtual monochromatic image (VMI)reconstruction regardless of tube voltage.
Hiroki Mori +3 more
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A head computed tomography angiography (CTA) is widely used for diagnosing cerebrovascular diseases and preoperative vascular assessment. A photon-counting detector CT (PCD-CT)enables virtual monochromatic image (VMI)reconstruction regardless of tube voltage.
Hiroki Mori +3 more
openaire +2 more sources
Image Quality on Dual-energy CTPA Virtual Monoenergetic Images
Academic Radiology, 2018Bari Dane +9 more
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Pediatric Radiology
While single-energy hand computed tomography angiography (CTA) often yields suboptimal visualization of distal vessels, dual-energy computed tomography (CT) with low-keV virtual monoenergetic image (VMI) reconstruction enhances small-vessel conspicuity.To evaluate the value of dual-energy CT VMIs in pediatric hand CTA.This retrospective study included ...
Hongrong, Xu +5 more
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While single-energy hand computed tomography angiography (CTA) often yields suboptimal visualization of distal vessels, dual-energy computed tomography (CT) with low-keV virtual monoenergetic image (VMI) reconstruction enhances small-vessel conspicuity.To evaluate the value of dual-energy CT VMIs in pediatric hand CTA.This retrospective study included ...
Hongrong, Xu +5 more
openaire +2 more sources