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Showing 95653 to 1463 of 1463 entries
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Feasibility of sub-second CT angiography of the abdomen and pelvis with very low volume of contrast media, low tube voltage, and high-pitch technique, on a third-generation dual-source CT scanner.

Clinical imaging

Sodagari F, Wood CG, Agrawal R, Yaghmai V.
PMID: 34768221
Clin Imaging. 2021 Nov 03;82:15-20. doi: 10.1016/j.clinimag.2021.10.011. Epub 2021 Nov 03.

BACKGROUND: Concerns about potential risks of using contrast media in patients with chronic renal insufficiency limit the utilization of CT angiography in this population.PURPOSE: To evaluate the feasibility of abdominopelvic CTA with very low volumes of contrast media.MATERIAL AND...

The "Direct tip injection in occlusive lesions (DIOL)" fashion.

CVIR endovascular

Haraguchi T, Fujita T, Kashima Y, Tsujimoto M, Watanabe T, Sugie T, Hachinohe D, Kaneko U, Kobayashi K, Kanno D, Sato K.
PMID: 34905136
CVIR Endovasc. 2021 Dec 14;4(1):87. doi: 10.1186/s42155-021-00276-w.

BACKGROUND: The successful intervention for peripheral artery disease is limited by complex chronic total occlusions (CTOs). During CTO wiring, without the use of intravascular or extravascular ultrasound, the guidewire position is unclear, except for calcified lesions showing the vessel...

Systemic vasculitides and the role of multitechnique imaging in the diagnosis.

Clinical radiology

Aghayev A, Steigner ML.
PMID: 33812649
Clin Radiol. 2021 Jul;76(7):488-501. doi: 10.1016/j.crad.2021.03.002. Epub 2021 Mar 31.

Vasculitis, a systemic disease characterised by inflammation of the blood vessels, remains challenging to diagnose and manage. Vessel size has been the basis for classifying systemic vasculitides. Imaging plays a vital role in diagnosing this challenging disease. This review...

Blood CD3-(CD56 or 16)+ natural killer cell distributions are heterogeneous in healthy adults and suppressed by azathioprine in patients with ANCA-associated vasculitides.

BMC immunology

Merkt W, Salzer U, Thiel J, Jandova I, Bergner R, Venhoff AC, Venhoff N.
PMID: 33840389
BMC Immunol. 2021 Apr 12;22(1):26. doi: 10.1186/s12865-021-00416-w.

BACKGROUND: Cytotoxic Natural Killer (NK) cells are increasingly recognized as a powerful tool to induce targeted cell death in cancer and autoimmune diseases. Still, basic blood NK cell parameters are poorly defined. The aims of this study were 1)...

Shelling the myth: allergies to Iodine containing substances and risk of reaction to Iodinated contrast media.

Emergency radiology

Bruen R, Stirling A, Ryan M, Sheehan M, MacMahon P.
PMID: 34609674
Emerg Radiol. 2021 Oct 05; doi: 10.1007/s10140-021-01989-0. Epub 2021 Oct 05.

PURPOSE: In excess of 100 million procedures using iodinated radio-contrast media are conducted each year. There is a common misunderstanding regarding the links between allergy to iodinated substances and the risk of allergic reaction to intravenous iodinated contrast agents....

Diagnosis of Hepatocellular Carcinoma Using Gd-EOB-DTPA MR Imaging.

Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine

Murakami T, Sofue K, Hori M.
PMID: 34421091
Magn Reson Med Sci. 2021 Aug 21; doi: 10.2463/mrms.rev.2021-0031. Epub 2021 Aug 21.

Gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid (Gd-EOB-DTPA; Gadoxetic acid; Gadoxetate disodium) is a hepatocyte-specific MR contrast agent. It acts as an extracellular contrast agent in the early phase after intravenous injection, and then is taken up by hepatocytes later. Using...

Bowel Peristalsis Artifact on Dual-Energy CT: In Vitro Study on the Influence of Different Dual-Energy CT Platforms and Enteric Contrast Agents.

AJR. American journal of roentgenology

Obmann MM, Sun Y, An C, Ohliger MA, Wang ZJ, Yeh BM.
PMID: 34406059
AJR Am J Roentgenol. 2021 Aug 18;1-10. doi: 10.2214/AJR.21.26345. Epub 2021 Aug 18.

No abstract available.

Visual Sequence Algorithm for Moving Object Tracking and Detection in Images.

Contrast media & molecular imaging

Xue R, Liu M, Yu X.
PMID: 35024011
Contrast Media Mol Imaging. 2021 Dec 27;2021:3666622. doi: 10.1155/2021/3666622. eCollection 2021.

OBJECTIVE: The effects of different algorithms on detecting and tracking moving objects in images based on computer vision technology are studied, and the best algorithm scheme is confirmed.METHODS: An automatic moving target detection and tracking algorithm based on the...

Application Value of Blood Heparin-Binding Protein in the Diagnosis of Acute Exacerbation of Chronic Obstructive Pulmonary Disease.

Contrast media & molecular imaging

Dong Y, Zhou X, Zhang Y, Liu Y, Zhou X, Ren G, Li Q.
PMID: 35024012
Contrast Media Mol Imaging. 2021 Dec 22;2021:3800211. doi: 10.1155/2021/3800211. eCollection 2021.

OBJECTIVE: To investigate the expression and clinical significance of serum heparin-binding protein (HBP), C-reactive protein (CRP), and white blood cell count (WBC) in an acute exacerbation of chronic obstructive pulmonary disease (COPD).METHODS: A prospective research model was used to...

Reversible Information of Encrypted Image Based on Feature Difference Detection and Wavelet Transform.

Contrast media & molecular imaging

Ding Y, Wei Y, Zhang S, Yu S.
PMID: 35024013
Contrast Media Mol Imaging. 2021 Dec 21;2021:5483001. doi: 10.1155/2021/5483001. eCollection 2021.

Aiming at the shortcomings of the existing lossless digital watermarking algorithm based on frequency domain in reversibility and embedding capacity, this study proposes a lossless digital image watermarking algorithm based on fractional wavelet transform, which is used for large-capacity...

Multi-detector computed tomography angiography for coronary artery disease: an evidence-based analysis.

Ontario health technology assessment series

[No authors listed]
PMID: 23074474
Ont Health Technol Assess Ser. 2005;5(5):1-57. Epub 2005 Apr 01.

PURPOSE: Computed tomography (CT) scanning continues to be an important modality for the diagnosis of injury and disease, most notably for indications of the head and abdomen. (1) According to a recent report published by the Canadian Institutes of...

Showing 95653 to 1463 of 1463 entries