Objective: This study aimed to evaluate the feasibility of a low contrast, low-radiation dose protocol of 80-peak kilovoltage (kVp) with prospective electrocardiography-gated cardiac computed tomography (CT) using knowledge-based iterative model reconstruction (IMR). Methods: Thirty patients underwent an 80-kVp prospective electrocardiography-gated cardiac CT with low-contrast agent (222-mg iodine per kilogram of body weight) dose. We also enrolled 30 consecutive patients who were scanned with a 120-kVp cardiac CT with filtered back projection using the standard contrast agent dose (370-mg iodine per kilogram of body weight) as a historical control group. We evaluated the radiation dose for the 2 groups. The 80-kVp images were reconstructed with filtered back projection (protocol A), hybrid iterative reconstruction (HIR, protocol B), and IMR (protocol C). We compared CT numbers, image noise, and contrast-to-noise ratio among 120-kVp protocol, protocol A, protocol B, and protocol C. In addition, we compared the noise reduction rate between HIR and IMR. Two independent readers compared image contrast, image noise, image sharpness, unfamiliar image texture, and overall image quality among the 4 protocols. Results: The estimated effective dose (ED) of the 80-kVp protocol was 74% lower than that of the 120-kVp protocol (1.4 vs 5.4 mSv). The contrast-to-noise ratio of protocol C was significantly higher than that of protocol A. The noise reduction rate of IMR was significantly higher than that of HIR (P
from #Medicine via ola Kala on Inoreader http://ift.tt/1WVr5UF
via IFTTT
Αρχειοθήκη ιστολογίου
-
►
2023
(138)
- ► Φεβρουαρίου (74)
- ► Ιανουαρίου (64)
-
►
2022
(849)
- ► Δεκεμβρίου (61)
- ► Σεπτεμβρίου (74)
- ► Φεβρουαρίου (65)
-
►
2021
(2936)
- ► Δεκεμβρίου (59)
- ► Σεπτεμβρίου (180)
- ► Φεβρουαρίου (325)
-
►
2020
(1624)
- ► Δεκεμβρίου (293)
- ► Σεπτεμβρίου (234)
- ► Φεβρουαρίου (28)
-
►
2019
(13362)
- ► Δεκεμβρίου (19)
- ► Σεπτεμβρίου (54)
- ► Φεβρουαρίου (5586)
- ► Ιανουαρίου (5696)
-
►
2018
(66471)
- ► Δεκεμβρίου (5242)
- ► Σεπτεμβρίου (5478)
- ► Φεβρουαρίου (4835)
- ► Ιανουαρίου (5592)
-
►
2017
(44259)
- ► Δεκεμβρίου (5110)
- ► Σεπτεμβρίου (5105)
-
▼
2016
(7467)
- ► Δεκεμβρίου (514)
- ► Σεπτεμβρίου (1038)
-
▼
Μαΐου
(630)
-
▼
Μαΐ 26
(50)
- Information, Vol. 7, Pages 29: Measuring Knowledge...
- Remote Sensing, Vol. 8, Pages 449: MERIS Phytoplan...
- Energies, Vol. 9, Pages 411: Simultaneous Optimiza...
- Metals, Vol. 6, Pages 127: The Effects of Al and T...
- Microarrays, Vol. 5, Pages 11: Living Cell Microar...
- Aerospace, Vol. 3, Pages 15: Theoretical and Numer...
- Universe, Vol. 2, Pages 8: Black Holes and Exotic ...
- Atmosphere, Vol. 7, Pages 75: Stratospheric Aeroso...
- IJMS, Vol. 17, Pages 809: The miRacle in Pancreati...
- IFC(EDITORIAL BOARD)
- Potential Role of Epigenetic Mechanism in Manganes...
- Fibers, Vol. 4, Pages 18: Glass Fibre Strength—A R...
- Sustainability, Vol. 8, Pages 502: The Environment...
- Sustainability, Vol. 8, Pages 508: Impact of Inter...
- IJERPH, Vol. 13, Pages 534: Dissipation and Residu...
- Energies, Vol. 9, Pages 410: Development of a Nove...
- Sensors, Vol. 16, Pages 759: Computer-Aided Sensor...
- Applied Sciences, Vol. 6, Pages 161: Isolation, Id...
- Energies, Vol. 9, Pages 412: Analytical Model for ...
- JMSE, Vol. 4, Pages 37: Quantitative Estimates of ...
- Sustainability, Vol. 8, Pages 507: Quantitative St...
- Algorithms, Vol. 9, Pages 36: Robust Hessian Local...
- Risks, Vol. 4, Pages 16: Spouses’ Dependence acros...
- Tailored message interventions versus typical mess...
- Haemorrhoidal artery ligation versus rubber band l...
- Laparoscopic distal pancreatectomy for pancreatic ...
- Statin-induced liver Injury in an area endemic for...
- Recurrence of solid pseudopapillary neoplasms of t...
- The role of hepatitis E virus infection in Adult A...
- Postinfectious and sporadic functional gastrointes...
- Age-dependent characteristics of feedback evaluati...
- IJMS, Vol. 17, Pages 378: A Theoretical Study of t...
- Radiologic and Clinicopathologic Findings of Infla...
- Lesion Size and Iodine Quantification to Distingui...
- Low-Contrast and Low-Radiation Dose Protocol in Ca...
- Multivariate Analysis of Pleural Invasion of Perip...
- Dual-Energy CT Characteristics of Parathyroid Aden...
- Accelerated Brain Atrophy on Serial Computed Tomog...
- The Initial Exploration of Adamkiewicz Artery Comp...
- A Liver Phantom Study: CT Radiation Dose Reduction...
- Computed Tomography Perfusion of Prostate Cancer: ...
- Apparent Diffusion Coefficient and Dynamic Contras...
- Primary Extremity Liposarcoma: MRI Features, Histo...
- Beak-Like Extension of the Pancreatic Uncinate Pro...
- Retrospective Assessment of Histogram-Based Diffus...
- Evaluation of Lung Radiofrequency Ablation With Du...
- Iterative Reconstruction Results in Larger Compute...
- Symmetry, Vol. 8, Pages 39: A PT -Symmetric Dual-C...
- Microsatellite instability as a predictive factor ...
- Targeting the ecology within: The role of the gut–...
-
▼
Μαΐ 26
(50)
- ► Φεβρουαρίου (793)
Αναζήτηση αυτού του ιστολογίου
Εγγραφή σε:
Σχόλια ανάρτησης (Atom)
-
Αλέξανδρος Γ. Σφακιανάκης Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,0030693260717...
-
heory of COVID-19 pathogenesis Publication date: November 2020Source: Medical Hypotheses, Volume 144Author(s): Yuichiro J. Suzuki ScienceD...
-
https://ift.tt/2MQ8Ai8
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου
Σημείωση: Μόνο ένα μέλος αυτού του ιστολογίου μπορεί να αναρτήσει σχόλιο.