Section thickness in two-dimensional Fourier transform (FT) imaging is dependent on gradient strength and the shape of the radio-frequency pulses used to excite the nuclei. By manipulation of these parameters, it is possible to obtain 2.5-mm-thick sections in contiguous, multisection imaging. Because this method is efficient in imaging with long repetition times (TR), it effectively complements three-dimensional FT thin-section imaging techniques, which require imaging with short TRs. Fifteen double-echo, contiguous images of 0.9 X 0.9 X 2.5-mm resolution were obtained in 17.1 minutes for a TR of 2 seconds.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1148/radiology.158.3.3945756 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Ultrasound quantification of pleural effusion volume in supine position: comparison of three model formulae.
BMC Pulm Med
July 2024
Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong university of Science and Technology, Wuhan, Hubei, 430030, China.
Background: To investigate the accuracy of three model formulae for ultrasound quantification of pleural effusion (PE) volume in patients in supine position.
Methods: A prospective study including 100 patients with thoracentesis and drainage of PE was conducted. Three model formulae (single section model, two section model and multi-section model) were used to calculate the PE volume.
Altered extracellular matrix dynamics is associated with insulin resistance in adolescent children with obesity.
Obesity (Silver Spring)
March 2024
Department of Pediatrics, Yale School of Medicine, New Haven, Connecticut, USA.
Objective: The objective of this study was to examine the hypothesis that abdominal and gluteal adipocyte turnover, lipid dynamics, and fibrogenesis are dysregulated among insulin-resistant (IR) compared with insulin-sensitive (IS) adolescents with obesity.
Methods: Seven IS and seven IR adolescents with obesity participated in a 3-h oral glucose tolerance test and a multi-section magnetic resonance imaging scan of the abdominal region to examine body fat distribution patterns and liver fat content. An 8-week 70% deuterated water ( H O) labeling protocol examined adipocyte turnover, lipid dynamics, and fibrogenesis in vivo from biopsied abdominal and gluteal fat.
Improved Multi-Head Self-Attention Classification Network for Multi-View Fetal Echocardiography Recognition.
Annu Int Conf IEEE Eng Med Biol Soc
July 2023
The accurate acquisition of multiview fetal cardiac ultrasound images is very important for the diagnosis of fetal congenital heart disease (FCHD). However, these manual clinical procedures have drawbacks, e.g.
View Article and Find Full Text PDFAn Inspection Technique Using Fit Clearance Based on Microscopic Vision in Precision Assembly.
Micromachines (Basel)
September 2023
Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116024, China.
Inspection is a crucial process to ensure product quality. In the precision assembly of an optic-mechanical device, a part with micro multi-section arcs needs to be inspected and assembled into another part. Actually, because of machining errors, including dimensional and geometric shapes, can lead to complex deformation modes for parts with micro multi-section arcs, posing challenges to their inspection.
View Article and Find Full Text PDF"Triple-low" radiation dose bronchial artery CT angiography before bronchial artery embolisation: a feasibility study.
Clin Radiol
December 2023
Department of Interventional Treatment, First Hospital of Qinhuangdao, No. 258 Wenhua Road, Qinhuangdao, 066099, Hebei, China. Electronic address:
Aim: To explore the feasibility of a "triple-low" dose (low tube voltage, low tube current, and low contrast agent volume) bronchial artery computed tomography (CT) angiography (CTA) to replace routine dose bronchial artery CTA before bronchial artery embolisation (BAE).
Materials And Methods: CTA was obtained from 60 patients with body mass index (BMI) < 30 kg/m using a 256 multi-section iCT system, and they were divided into two groups: (1) group A: 100 kVp, 100 mAs, 50 ml contrast medium (CM); (2) group B: 120 kVp, automatic tube current modulation (ACTM), 80 ml CM. CT attenuation of the thoracic aorta, image noise, signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were calculated, and subjective image quality scores and traceability scores assessed.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!