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Venous Phase sentence examples within normalized iodine concentration
The short-axis diameter of the LN, arterial enhancement fraction (AEF), normalized iodine concentration (NIC), and the slope of the spectral Hounsfield unit curve (λHU) during the arterial phase (AP) and venous phase (VP) were measured.
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Diameter, iodine concentration (IC), normalized iodine concentration (NIC), and the slope of the energy spectrum curve (λHU) of LNs in the arterial and the venous phases were compared between metastatic and non-metastatic LNs.
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Venous Phase sentence examples within late arterial phase
MATERIALS AND METHODS
A dual-contrast CT protocol was developed for PCD-CT to simultaneously acquire 2 phases of liver contrast enhancement, with the late arterial phase enhanced by 1 contrast agent (iodine-based) and the portal venous phase enhanced by the other (gadolinium-based).
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Sixty-six patients with diagnosed solid lung tumors underwent DECT scans in the late arterial phase (AP) and venous phase (VP) between January 2017 and June 2018.
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Venous Phase sentence examples within phase arterial phase
Tumor segmentation of all CECT images including noncontrast phase, arterial phase, and portal venous phase was manually performed for radiomic feature extraction.
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Three hours later because of the persistent abdominal pain and the presence of new fluid on a bedside sonogram, a multiphase CT (contrast phase, arterial phase, venous phase and delayed phase) to rule out vascular injury was ordered.
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Venous Phase sentence examples within effective atomic number
Results Significant differences in age, C-reactive protein concentration, the slope of the spectral curve from 40 to 65 keV (K 40–65 keV ) of necrosis in non-contrast-enhanced scanning (NCS), arterial phase (AP) and venous phase (VP), effective atomic number of necrosis in NCS, and iodine concentration (IC) of the solid component in VP were observed between groups (all p < 0.
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Spectral parameters (CT40keV, CT70keV, CT100keV, iodine concentration [IC], water concentration [WC], and effective atomic number [Zeff]) of the lesions in the arterial and venous phases were measured in both groups.
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Venous Phase sentence examples within arterial phase portal
METHODS We retrospectively collected T2-weighted, gadoxetate disodium-enhanced arterial phase, portal venous phase, and hepatobiliary phase MRI scans from patients with focal nodular hyperplasia (FNH), hepatocellular carcinomas (HCC) or liver metastases (MET).
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In this work, we propose to improve the BUS-based computer aided diagnosis for liver cancers by transferring knowledge from the multi-view CEUS images, including the arterial phase, portal venous phase, and delayed phase, respectively.
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Venous Phase sentence examples within contrast enhanced computed
Contrast-enhanced computed tomography (CT) revealed that the jejunum around the PE site was strongly enhanced with enhancing nodules in the arterial phase, and a wide area of the Roux limb wall was slightly enhanced in the venous phase.
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Radiomics features were extracted from both arterial phase and portal venous phase contrast-enhanced computed tomography (CT) scans.
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Venous Phase sentence examples within hepatic arterial phase
MD maps were generated to calculate the area under the curve (AUC) and cutoff values to discriminate these nodules in the hepatic arterial phase (HAP) and portal venous phase (PVP).
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We measured the CT number in the abdominal aorta and hepatic parenchyma on unenhanced scans and hepatic arterial phase (HAP)-, and portal venous phase (PVP).
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Venous Phase sentence examples within digital subtraction angiography
PURPOSE
We have described unidentified bright objects of spleen (UBOS), a hitherto undescribed entity, as hyperdense areas on arterial phase (AP) computed tomography (CT) seen in relation to splenic lacerations and are isodense to the normal parenchyma on portal venous phase with no correlate on digital subtraction angiography (DSA).
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First, each digital subtraction angiography (DSA) acquisition is separated into four phases (non-contrast, arterial, parenchymal and venous phase) using a multi-path convolutional neural network (CNN), which exploits spatio-temporal features.
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Venous Phase sentence examples within contrast enhanced portal
Volumetric trabecular BMD values derived from unenhanced and contrast-enhanced portal venous phase were compared by calculating correlation and agreement analyses using Pearson product-moment correlation, linear regression, and Bland-Altman plots.
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OBJECTIVE
To assess clinical application of applying deep learning image reconstruction (DLIR) algorithm to contrast-enhanced portal venous phase liver computed tomography (CT) for improving image quality and lesions detection rate compared with using adaptive statistical iterative reconstruction (ASIR-V) algorithm under routine dose.
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Venous Phase sentence examples within apparent diffusion coefficient
Shape and 1st- and 2nd-order radiomics features were quantified on pre-contrast T1-weighted imaging (WI), T1WI portal venous phase (pvp), T2WI, and ADC (apparent diffusion coefficient), on liver regions of interest (ROIs) and HCC volumes of interest (VOIs).
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Images were evaluated regarding NEN lesion number and location, predominant tumor signal intensity on precontrast T1w and T2w images and on postcontrast arterial and portal venous phase T1w images, apparent diffusion coefficient (ADC) and SUVmax.
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Venous Phase sentence examples within 0 % 0
Among the four added class II types at CT, the proportion of malignancy among (1) ‘homogeneous hyperattenuating (≥ 70 HU) masses at unenhanced CT’ was 0% (0/32) in three studies; (2) ‘homogeneous masses − 9 to 20 HU at unenhanced CT’ was 0% (0/1454) in two studies, and (3) ‘homogeneous masses 21 to 30 HU at portal-venous phase CT’ was 0% (0/454) in four studies.
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Venous Phase sentence examples within Portal Venous Phase
Venous Phase sentence examples within Late Venous Phase
4 ml Sulfurhexafluorid microbubbles (SonoVue®, Bracco, Milan, Italy) was injected into a cubital vein and then the distribution kinetics of the contrast agent were documented from the early arterial phase (10 to 15 seconds after injection) to the late venous phase (5 minutes after injection).
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Fluorescein angiography showed delayed perfusion in early arterial phase with normal perfusion in late venous phases.
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Venous Phase sentence examples within Delayed Venous Phase
Methods Primary ICH patients undergoing DE-CTA (both arterial as well as delayed venous phase) and follow-up computed tomography were prospectively included between 2014 and 2019.
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The delayed venous phase enhancing lesions may mimic neoplasms and after tissue biopsy may be managed by sclerotherapy.
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Venous Phase sentence examples within Hepatic Venous Phase
Histologically proven IMCC (representing the full range of stages) were retrospectively analyzed by volume segmentation on baseline hepatic venous phase computed tomography (CT), by two readers with different experience (R1 and R2).
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All cases were acquired using a standardized multiphasic liver CT protocol, arterial, portal, and hepatic venous phases were obtained.
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Venous Phase sentence examples within 4 Venous Phase
Venous Phase sentence examples within Early Venous Phase
Corresponding time points of arterial, pancreatic, and early venous phase were calculated from bolus trigger times in prior conventional CT.
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The delay in the venous drainage of the AVM to the late arterial phase or early venous phase with flow stasis was a significant predictor of future obliteration on follow up after partial embolization.
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Venous Phase sentence examples within venous phase ct
For each patient, 1674 radiomics features extracted from portal venous phase CT images were reduced by using minimum redundancy and maximum relevant.
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Whole lesion semi-automated segmentation was performed on each slice of the lesion on all pretreatment venous phase CT exams using Healthmyne Software (Healthmyne, Madison, WI, USA) to generate a volume of interest.
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Venous Phase sentence examples within venous phase image
Three GI radiologists rated confidence in GI bleeding in a subset of 62 examinations, evaluating first mixed kV arterial images, then after examining additional portal venous phase images, and finally after additional DE images (virtual non-contrast and virtual monoenergetic 50 keV images).
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A large number of intra- and peritumoral radiomics features were extracted from portal venous phase images of computed tomography (CT).
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Venous Phase sentence examples within venous phase contrast
Her chest Xray Figure 1 CT abdomen and pelvis performed on admission with portovenous phase contrast (A) axial image at T8 level and (B) sagittal image of a heavily atherosclerotic thoracic aorta but no surrounding collection.
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Radiomics features were extracted from both arterial phase and portal venous phase contrast-enhanced computed tomography (CT) scans.
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Venous Phase sentence examples within venous phase abdominal
Methods Outpatients who underwent portovenous phase abdominal CT (fixed duration, February–November 2018; fixed rate, January–July 2020) with 1.
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The attenuation of segments V and VIII on the portal venous phase abdominal to the pelvic CT scan was classified into 3 categories: hyperattenuation, iso-attenuation, and hypoattenuation.
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Venous Phase sentence examples within venous phase enhanced
According to the venous phase enhanced scan, the extrahepatic bile duct wall ≥2 mm was used as the thickening criterion to evaluate the stone density, size, number, and composition ratio of the site and its relationship with tube wall thickening.
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MATERIALS AND METHODS
A dual-contrast CT protocol was developed for PCD-CT to simultaneously acquire 2 phases of liver contrast enhancement, with the late arterial phase enhanced by 1 contrast agent (iodine-based) and the portal venous phase enhanced by the other (gadolinium-based).
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Venous Phase sentence examples within venous phase acquisition
Therefore, routine surveillance with 2D-, 3Dtrans-esophageal echocardiography or even better with computed tomography with venous phase acquisition is strongly recommended in order to identify patients with LAA patency.
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Volume CT dose index (CTDIvol), dose length product (DLP), and ERD for venous phase acquisition were recorded in each patient and were normalised for 40 cm.
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Venous Phase sentence examples within venous phase computed
Objective The aim of the study was to determine the prevalence of clinically important masses among incidental hyperenhancing liver observations on portal venous phase computed tomography (CT) in patients without known malignancy or liver disease.
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Histologically proven IMCC (representing the full range of stages) were retrospectively analyzed by volume segmentation on baseline hepatic venous phase computed tomography (CT), by two readers with different experience (R1 and R2).
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Material and methods Sixty-three patients, 22 clinically diagnosed with pneumonia and 41 with atelectasis, underwent contrast-enhanced SDCT scans during the venous phase.
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Immediate contrast stasis in the venous phase was associated with complete occlusion during follow-up (p = 0.
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Perfusion delays in the venous phase can be linked to Vascular Endothelial Growth Factor (VEGF)-related activity which represents the active part of the tumor.
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The 120 kV-like, virtual monoenergetic images (VMI) (70, 90, 110 keV), VMI (70, 90, 110 keV)+MMAR images were reconstructed at venous phase by energy spectrum scanning.
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Therefore, routine surveillance with 2D-, 3Dtrans-esophageal echocardiography or even better with computed tomography with venous phase acquisition is strongly recommended in order to identify patients with LAA patency.
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There was no evidence of a dural arteriovenous fistula, but the left sigmoid sinus did show stagnation and reflux on venous phase (Fig.
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RESULTS
In the arterial phase (AP) and venous phase (VP), the BEOTs had significantly lower enhancement than MEOTs from 40 to 100 keV (p<0.
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In the arterial and venous phase, NICs, λHu, nZeff, and attenuation were higher in malignant lesions than benign lesions (all P<0.
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Objective: To investigate the segmentation effects of the deep learning method on CT in the arterial phase and venous phase respectively by using subjective and objective evaluation system, and to investigate the factors that affect the difference between arterial phase and venous phase pancreas segmentation and the related factors affecting the venous pancreas segmentation.
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Methods Outpatients who underwent portovenous phase abdominal CT (fixed duration, February–November 2018; fixed rate, January–July 2020) with 1.
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Results In stage I lesions, there was a statistically significant difference between the slope of the energy spectrum curve for the lesion and those of the fat outside the lesion and the anterior chest wall in the arteriovenous phase (P<0.
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Results
Iodine density, LMR, and LAR during the arterial phase (AP) and venous phase (VP) were all significantly higher for SOM than for SIs (all P<0.
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Her chest Xray Figure 1 CT abdomen and pelvis performed on admission with portovenous phase contrast (A) axial image at T8 level and (B) sagittal image of a heavily atherosclerotic thoracic aorta but no surrounding collection.
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According to the venous phase enhanced scan, the extrahepatic bile duct wall ≥2 mm was used as the thickening criterion to evaluate the stone density, size, number, and composition ratio of the site and its relationship with tube wall thickening.
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Use of venous phase coronary angiography, a computed tomography scan with venous phase, or a left-sided upper extremity venogram may help reveal a variant anatomy and guide tool selection.
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TRICKS is a recently introduced MR technique that allows for dynamic MR imaging during the arterial, capillary, and venous phases.
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