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Detection of different kidney stone types: an ex vivo comparison of ultrashort echo time MRI to reference standard CT
2016
Clinical imaging
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and Purpose-With the development of ultrashort echo time (UTE) sequences, it may now be possible to detect kidney stones by using magnetic resonance imaging (MRI). ...
Methods-One hundred and fourteen kidney stones were inserted into agarose and urine phantoms and imaged on both a dual-energy CT scanner using a standard renal stone imaging protocol and on an MRI scanner ...
The recent development of ultra-short echo time (UTE) sequencing with TE's in the microseconds has allowed for the possibility of imaging kidney stones with MR. ...
doi:10.1016/j.clinimag.2015.09.005
pmid:26526527
pmcid:PMC5485418
fatcat:5onswq6mdbdepev6tvwk3v6fkm
5th International Symposium on Focused Ultrasound
2016
Journal of Therapeutic Ultrasound
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Contrast T1 and T2* images allowed semi-real time confirmation of BBB disruption and safety, respectively. ...
Recent data from a multi-institution, randomized controlled clinical trial demonstrated that Magnetic Resonance-guided Focused Ultrasound (MRgFUS) thalamotomy improves upper limb tremor in medically refractory ...
However, there is a move towards ultra-short echo time (UTE) magnetic resonance imaging to reduce patient exposure to ionizing radiation. ...
doi:10.1186/s40349-016-0076-5
fatcat:4vm7i5mt6vheni3hflxd3pwl2i
International Society for Therapeutic Ultrasound Conference 2016
2017
Journal of Therapeutic Ultrasound
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This may be currently associated with a high radiation dose. ...
This may pose a challenge when treating an organ which comprises of several tissue types. Another challenge stems from the need for a high rate of image acquisition. ...
protocols under magnetic resonance imaging (MRI) guidance. ...
doi:10.1186/s40349-016-0079-2
fatcat:wjrvxyhd5bappjipymenn5swwq
B - Scientific Sessions
2010
Insights into Imaging
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After image registration, perfusion was calculated with maximum slope technique; time-attenuation-curves and coloured perfusion maps were generated. ...
Methods and Materials: 20 patients with clinically suspected severe acute pancreatitis were referred for CT evaluation and imaged with a 320-slice CT unit within the first 24 hours after admission. ...
All MRI were performed on a 3 T MR system by using a 3D refocused radial imaging sequence with uTEs with the following parameters. ...
doi:10.1007/s13244-010-0011-1
pmid:23099631
pmcid:PMC3534347
fatcat:yfnq3lgteja2lfjl66ivdfnoum
Abstracts from the International Society for Therapeutic Ultrasound Conference 2017
2018
Journal of Therapeutic Ultrasound
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T2* map were created from multiecho gradient echo sequence at 3T (Achieva, Philips Healthcare, Andover, MA) through the rat brain with TE=7 msec, echo train length 5 and echo spacing 7 and Tr=1500 msec ...
The purpose of this study was to evaluate the effects of multiple weekly courses of pFUS+MB exposures in the rat brain using micro-Positron Emmision Tomography (PET) and 18F-DPA-714, a marker of translocator ...
Acknowledgements This work was supported by the Bettencourt Schueller Foundation and the "Agence Nationale de la Recherche" under the program "Future Investments" with the reference ANR-10-EQPX-15. ...
doi:10.1186/s40349-018-0110-x
fatcat:4nn4nwntgbfl5cdwvqc3wfxszu
A Model for Online Interactive Remote Education for Medical Physics Using the Internet
2003
Journal of Medical Internet Research
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short time. ...
echo time, and a ramped tip angle. ...
We used the imager to acquire real-time 512x480 radiographic frames of the phantom. ...
doi:10.2196/jmir.5.1.e3
pmid:12746208
pmcid:PMC1550549
fatcat:tsyf45yusza2jiglkq62rgo3qm
Noninvasive imaging
2001
Journal of the American College of Cardiology
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The purpose of this study was to analyze the LAA function with LAA clot and spontaneous echo contrast (SEC). ...
There are not enough studies properly evaluating LAA function in a large number of patients (pts) with isolated severe MS. ...
Magnetic resonance angiography was performed using a three-dimensional contrast-enhanced gradient echo technique with ultrashort echo time during breath-holding. ...
doi:10.1016/s0735-1097(01)80006-1
fatcat:ghklt3w3zze3le5gwnpbbfvrrm
The Following are Abstracts from the Second International Conference of the European Society for Molecular Imaging in Naples, Italy June 14-15, 2007
2007
Molecular Imaging
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Topics covered in this lecture include-but are not limited to-vascular and lymphatic targeting, molecular-genetic imaging, and other applications of toolkits of scientific and medical value. ...
The aggregate data we have generated thus far indicate that a new targeted pharmacology and its ramifications are now unequivocally at hand. ...
and fluorescence imaging of the sample with nanometric resolution (<50-100 nm), thus ...
doi:10.2310/7290.2007.00032
fatcat:hl2ynabt3bez7bt6vllibmsy3y
ECR 2011 Book of Abstracts - B - Scientific Sessions
2011
Insights into Imaging
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MR imaging was performed by 3D T1-weighted THRIVE breathold sequence (TR/ TE=3/1.57 msecs) before and after Gd-BOPTA injection (0.1 mmol/kg; 2 mL/sec) with contrast injection starting after contrast visualisation ...
Purpose: To compare the HCC nodule conspicuity during the arterial phase between contrast-enhanced 64-row multidetector CT with bolus tracking and MR imaging with bolus chase. ...
Purpose: The objective of this study was to apply magnetic resonance imaging (MRI) using displacement encoding with stimulated echoes (DENSE) to investigate the dynamic displacements and strain fields ...
doi:10.1007/s13244-011-0077-4
pmid:23100071
pmcid:PMC3533624
fatcat:lytbu2vohbhhnorjqlpogl77iu
Scientific Exhibits
2014
Journal of Medical Radiation Sciences
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Method: Six patients, three left-sided and three right-sided, treated with a 9 static field IMRT approach to a prescribed dose of 54 Gy in 30 fractions were selected for this study. ...
The outcome of this study will lead to VMAT playing a vital role in the management of MPM, by reducing dose toxicity to OARs, increasing dose conformity to the PTV and reducing overall treatment times. ...
Two new 3D isotropic sequences were tested; ultra short echo time (UTE) and point-wise encoding time reduction with radial acquisition (PETRA). ...
doi:10.1002/jmrs.74
pmid:27759942
pmcid:PMC4263487
fatcat:ccsk62gef5g47bfugrvtwqapj4
Athletic injuries of the extensor carpi ulnaris subsheath: MRI findings and utility of gadolinium-enhanced fat-saturated T1-weighted sequences with wrist pronation and supination
2010
European Radiology
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depiction of the 3D-magnetic resonance observation of cartilage repair tissue (MOCART) score. ...
Pozzi Mucelli; Verona/ IT (gfoti81@yahoo.it) Purpose: To compare contrast-enhanced computed tomography (CECT), contrast-enhanced magnetic resonance imaging (MRI) and contrast-enhanced ultra-sonography ...
and magnetic resonance imaging (MRI) using magnetic navigation. ...
doi:10.1007/s00330-010-1887-3
pmid:20680292
fatcat:c73xl4gmnjbp5hahuek6dg2pcu
SPR 2018
2018
Pediatric Radiology
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DISCLOSURES In compliance with ACCME requirements and guidelines, the ACR has developed a policy for review and disclosure of potential conflicts of interest, and a method of resolution if a conflict does ...
CREDIT DESIGNATION STATEMENT: The American College of Radiology designates this activity for a maximum of 39. 25 AMA PRA Category 1 Credit(s) ™ Physicians should claim only the credit commensurate with ...
echo time (UTE) imaging. ...
doi:10.1007/s00247-018-4130-z
pmid:29707739
fatcat:46j635ave5hsldyl4phnftizsy
Posters
2011
Pediatric Radiology
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Purpose: Pneumonia is a common diagnosis amongst children admitted to hospital. Diagnosis relies upon accurate chest radiograph (CXR) interpretation. ...
The same CXRs were then interpreted by 21 other paediatricians with varying experience levels. ...
The Magnetic Resonance scanning was performed on a 3.0 Tesla imager. ...
doi:10.1007/s00247-011-2025-3
fatcat:4kgxnlpo2bes5phwdwsxu74j2y
ECR 2012 Book of Abstracts - A - Postergraduate Educational Programme
2012
Insights into Imaging
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Beside abdominal plain film and ultrasonography (US), computed tomography (CT) and magnetic resonance imaging (MRI) are two new and powerful imaging methods that have basically revolutionised the role ...
Molecular imaging represents a group of integrated and complementary methods that evaluate the biological information resolved in time and space in vivo, at high resolution and by using with specific probes ...
Scans and Magnetic Resonance. ...
doi:10.1007/s13244-012-0153-4
pmid:22696127
pmcid:PMC3481066
fatcat:te6ctbtakzh5njsw43geghw3ta
ECR 2015 Book of Abstracts - A - Postgraduate Educational Programme
2015
Insights into Imaging
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They are visible on T2* GRE which can be performed as 2D or 3D sequence. The size of the artefact depends on a number of imaging paramenters including the magnetic field strenght and echo time. ...
magnetic resonance imaging will be discussed. ...
With ultrashort time echo (UTE) sequences or variable echo time (VTE) sequences it is possible to acquire signal from those structures and to quantify it using T2* mapping. ...
doi:10.1007/s13244-015-0386-0
pmid:25708993
pmcid:PMC4349897
fatcat:m7eyvqcwojfpvf3lr5hy6dwjb4
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