Ultrashort echo time (UTE) MRI for the assessment of caries lesions
نویسندگان
چکیده
منابع مشابه
Ultrashort echo time (UTE) MRI for the assessment of caries lesions
OBJECTIVE Direct in vivo MRI of dental hard tissues by applying ultrashort echo time (UTE) MRI techniques has recently been reported. The objective of the presented study is to clinically evaluate the applicability of UTE MRI for the identification of caries lesions. METHODS 40 randomly selected patients (mean age 41 ± 15 years) were enrolled in this study. 39 patients underwent a conventiona...
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PURPOSE To optimize 3D radial ultrashort echo time MRI for high resolution whole-lung imaging. METHODS 3D radial ultrashort echo time was implemented on a 3T scanner to investigate the effects of: (1) limited field-of-view excitation, (2) variable density readouts, and (3) radial oversampling. Improvements in noise performance and spatial resolution were assessed through simulation and phanto...
متن کاملUsing adiabatic inversion pulses for long-T2 suppression in ultrashort echo time (UTE) imaging.
Ultrashort echo time (UTE) imaging is a technique that can visualize tissues with sub-millisecond T(2) values that have little or no signal in conventional MRI techniques. The short-T(2) tissues, which include tendons, menisci, calcifications, and cortical bone, are often obscured by long-T(2) tissues. This paper introduces a new method of long-T(2) component suppression based on adiabatic inve...
متن کامل3D Ultrashort Echo Time (UTE) Imaging in the Brain at 7T
Introduction: Ultrashort echo time (UTE) imaging offers advantages in being able to directly image tissues with T2 values less than a few milliseconds, such as tendons and cortical bone [1]. In the brain, short-T2 components are present in white matter [2] believed to be associated with myelin – as well as in connective tissues and calcifications, and these are known to be altered in neurodegen...
متن کاملComparison of Lung T2* Measurements at 1.5T and 3.0T with Ultrashort Echo Time (UTE) Sequence
Introduction: The short T2* of lung is mainly caused by the magnetic susceptibility difference between lung tissue and airway. Accurate assessments of lung T2* may be important as it has the potential to detect structural and functional changes caused by lung diseases such as emphysema, chronic bronchitis and fibrosis. For example, emphysema irreversibly destroys the tissues of the alveolar wal...
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ژورنال
عنوان ژورنال: Dentomaxillofacial Radiology
سال: 2013
ISSN: 0250-832X,1476-542X
DOI: 10.1259/dmfr.20120321