Articles with "layer spectral" as a keyword



Assessment of quantification accuracy and image quality of a full‐body dual‐layer spectral CT system

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Published in 2018 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.12243

Abstract: Abstract The performance of a recently introduced spectral computed tomography system based on a dual‐layer detector has been investigated. A semi‐anthropomorphic abdomen phantom for CT performance evaluation was imaged on the dual‐layer spectral CT at… read more here.

Keywords: image quality; system; dual layer; layer ... See more keywords

Radiomics based on dual‐layer spectral detector CT for predicting EGFR mutation status in non‐small cell lung cancer

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Published in 2024 at "Journal of Applied Clinical Medical Physics"

DOI: 10.1002/acm2.14616

Abstract: Abstract Objective To explore the value of dual‐layer spectral computed tomography (DLCT)‐based radiomics for predicting epidermal growth factor receptor (EGFR) mutation status in patients with non‐small cell lung cancer (NSCLC). Methods DLCT images and clinical… read more here.

Keywords: mutation status; egfr mutation; layer spectral; dual layer ... See more keywords

Initial Clinical Experience of Virtual Monoenergetic Imaging Improves Stent Visualization in Lower Extremity Run-Off CT Angiography by Dual-Layer Spectral Detector CT.

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Published in 2019 at "Academic radiology"

DOI: 10.1016/j.acra.2019.07.022

Abstract: RATIONALE AND OBJECTIVES Virtual monoenergetic imaging (VMI) may improve stent visualization in lower extremity run-off computed tomography angiography. The purpose of this study was to evaluate the image quality (IQ) of stents and to determine… read more here.

Keywords: spectral detector; lower extremity; dual layer; layer spectral ... See more keywords

Thoracic-abdominal imaging with a novel dual-layer spectral detector CT: intra-individual comparison of image quality and radiation dose with 128-row single-energy acquisition

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Published in 2018 at "Acta Radiologica"

DOI: 10.1177/0284185118762611

Abstract: Background A novel, multi-energy, dual-layer spectral detector computed tomography (SDCT) is commercially available now with the vendor’s claim that it yields the same or better quality of polychromatic, conventional CT images like modern single-energy CT… read more here.

Keywords: quality; image; energy; dual layer ... See more keywords
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Value of virtual monochromatic spectral image of dual-layer spectral detector CT with noise reduction algorithm for image quality improvement in obese simulated body phantom

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Published in 2019 at "BMC Medical Imaging"

DOI: 10.1186/s12880-019-0367-8

Abstract: BackgroundDual-layer spectral detector CT (SDCT) may provide several theoretical advantages over pre-existing DECT approaches in terms of adjustment-free sampling number and dose modulation, beam hardening correction, and production spectral images by post-processing. In addition, by… read more here.

Keywords: image; noise reduction; layer spectral; noise ... See more keywords

A nomogram based on dual-layer spectral detector CT-derived 40KeV virtual monoenergetic images for preoperative prediction of simultaneous distant metastasis in colorectal cancer

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Published in 2025 at "BMC Medical Imaging"

DOI: 10.1186/s12880-025-02008-1

Abstract: To establish and validate a nomogram combining dual-layer spectral detector CT(DLSCT)-derived 40KeV virtual monoenergetic images (VMI) of radiomics features, spectral parameters and clinical features for preoperative prediction of simultaneous distant metastases (SDM) in colorectal cancer… read more here.

Keywords: spectral detector; 40kev virtual; dual layer; virtual monoenergetic ... See more keywords

Acute stroke diagnosis: diagnostic efficacy of dual-layer spectral computed tomography for non-contrast ischemic sign detection

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Published in 2025 at "Quantitative Imaging in Medicine and Surgery"

DOI: 10.21037/qims-2025-1005

Abstract: Background Non-contrast computed tomography (NCCT) is a common imaging technique for suspected acute ischemic stroke (AIS); however, early ischemic changes (EICs) in AIS patients often present with subtle differences on NCCT. Dual-layer spectral computed tomography… read more here.

Keywords: dual layer; computed tomography; non contrast; tomography ... See more keywords

Quantitative assessment of bone marrow infiltration and characterization of tumor burden using dual-layer spectral CT in patients with multiple myeloma

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Published in 2024 at "Radiology and Oncology"

DOI: 10.2478/raon-2024-0003

Abstract: Abstract Background The aim of the study was to evaluate whether virtual calcium subtraction (VNCa) image extracted from dual-layer spectral CT could estimate bone marrow (BM) infiltration with MRI as the reference standard and characterize… read more here.

Keywords: dual layer; tumor; infiltration; tumor burden ... See more keywords

Clinical application of dual-layer spectral CT multi-parameter feature to predict microvascular invasion in hepatocellular carcinoma

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Published in 2024 at "Clinical Hemorheology and Microcirculation"

DOI: 10.3233/ch-242175

Abstract: OBJECTIVE: This study aimed to investigate the feasibility of using dual-layer spectral CT multi-parameter feature to predict microvascular invasion of hepatocellular carcinoma. METHODS: This retrospective study enrolled 50 HCC patients who underwent multiphase contrast-enhanced spectral… read more here.

Keywords: microvascular invasion; parameter; dual layer; hepatocellular carcinoma ... See more keywords

Extracellular Volume Fraction Derived From Dual-Layer Spectral Detector Computed Tomography for Diagnosing Cervical Lymph Nodes Metastasis in Patients With Papillary Thyroid Cancer: A Preliminary Study

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Published in 2022 at "Frontiers in Oncology"

DOI: 10.3389/fonc.2022.851244

Abstract: Objectives The current study evaluates the performance of dual-energy computed tomography (DECT) derived extracellular volume (ECV) fraction based on dual-layer spectral detector CT for diagnosing cervical lymph nodes (LNs) metastasis from papillary thyroid cancer (PTC)… read more here.

Keywords: extracellular volume; dual layer; computed tomography; lns ... See more keywords

Predictive Value of Arterial Enhancement Fraction Derived from Dual-Layer Spectral Computed Tomography for Thyroid Microcarcinoma

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Published in 2025 at "Diagnostics"

DOI: 10.3390/diagnostics15192427

Abstract: Background/Objectives: Accurately distinguishing malignancy in thyroid micronodules (≤10 mm) is crucial for clinical management, yet it is challenging due to the limitations of conventional ultrasonography-guided biopsy. This study aims to evaluate the predictive value of… read more here.

Keywords: value; spectral computed; dual layer; thyroid ... See more keywords