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Preliminary results of a pilot study into the diagnostic value of T scan in detecting breast malignancies

RL Tetlow, AE Hubbard
2000 Breast Cancer Research  
Although there are numerous publications regarding the value (and limitations) of MRI in the diagnosis of a variety of breast conditions, access to MRI in the UK is severely limited.  ...  Against this background, the current use of MRI in a busy symptomatic and screening practice will be presented and justified.  ...  It is intended to investigate the use of a small contrast detail test object (Nuclear Associates Contrast Detail Phantom) designed for a prone biopsy system for optimising selected kv and checking the  ... 
doi:10.1186/bcr205 fatcat:i3ygsexfgbeuxowty2mccb7weq

Prostate Cryotherapy Monitoring Using Vibroacoustography: Preliminary Results of an Ex Vivo Study and Technical Feasibility

F.G. Mitri, B.J. Davis, A. Alizad, J.F. Greenleaf, T.M. Wilson, L.A. Mynderse, M. Fatemi
2008 IEEE Transactions on Biomedical Engineering  
Baseline scanning of an excised human prostate is accomplished by a VA system apparatus in a tank of degassed water. Alcohol and dry ice mixture are used to freeze two prostate tissue samples.  ...  The objective of this research is to prospectively evaluate the feasibility of vibroacoustography (VA) imaging in monitoring prostate cryotherapy in an ex vivo model.  ...  This work was supported in part by the National Institute of Health under Grant EB 00535-04 and Grant CA 91956-06P2.  ... 
doi:10.1109/tbme.2008.2001284 pmid:18990628 pmcid:PMC2758914 fatcat:n5m77zmdpndirbzdxyrlp4k4i4

European cardiovascular magnetic resonance (EUROCMR) registry – preliminary results of the German pilot phase

Oliver Bruder, Steffen Schneider, Detlev Nothnagel, Thorsten Dill, Eike Nagel, Massimo Lombardi, Albert C van Rossum, Anja Wagner, Juerg Schwitter, Jochen Senges, Georg V Sabin, Udo Sechtem (+1 others)
2009 Journal of Cardiovascular Magnetic Resonance  
Contrast enhanced cardiovascular magnetic resonance imaging (ceCMR) can detect and quantify myocardial fibrosis in the setting of CMI and might therefore be a valuable tool for a more accurate risk stratification  ...  For quantitative assessment of infarct morphology late gadolinium enhancement (LGE) was performed including measurement of total and relative infarct mass (related to LV mass) and the degree of transmurality  ...  Conclusion: We presented a robust, accurate and efficient method for the fully automatic delineation of the myocardium contours in LA + SA cine CMR images, which can be used for accurate LV functional  ... 
doi:10.1186/1532-429x-11-s1-o13 fatcat:foyemtcw3fcjhleet6eqsfbdsa

Procedures for Evaluation of Slice Thickness in Medical Imaging Systems [chapter]

Giuseppe Vermiglio, Giuseppe Acri, Barbara Testagrossa, Federica Causa, Maria Giulia
2011 Modern Approaches To Quality Control  
In particular, for a high-accuracy measurement of slice thickness, several test objects inserted in multipurpose phantoms can be used, most of which utilize inclined surfaces (plane, cone or spiral).  ...  This chapter is structured as follows: a review of the materials and methods commonly used in CT, MRI and US imaging systems, and the novel and versatile methodology proposed here for slice thickness measurements  ...  Real-time B-mode ultrasound quality control test procedures. Report of the AAPM ultrasound task group No. 1.  ... 
doi:10.5772/23693 fatcat:e22rtgsravbrfjtrrvmuq3ftie

Validation of Scolioscan Air-Portable Radiation-Free Three-Dimensional Ultrasound Imaging Assessment System for Scoliosis

Kelly Ka-Lee Lai, Timothy Tin-Yan Lee, Michael Ka-Shing Lee, Joseph Chi-Ho Hui, Yong-Ping Zheng
2021 Sensors  
The spinal process angles (SPA) were measured in the coronal images formed by both systems and compared with each other.  ...  For the subject tests, results demonstrated that there was a very good agreement between the angles obtained by the two systems, with a strong correlation (R2 = 0.78) for the 29 curves measured.  ...  The results of these studies showed that intra-and inter-rater reliability of the 3D ultrasound system was good enough and comparable to the results obtained from traditional radiographs.  ... 
doi:10.3390/s21082858 pmid:33921592 fatcat:haftjrazyredhhicfbvmmxtcfe

Relationship between infarct gray zone and characteristics of ventricular tachycardia using multi-contrast delayed enhancement: preliminary results

Gideon A Paul, Jay S Detsky, Kim A Connelly, Eugene Crystal, Alexander J Dick, Graham A Wright
2009 Journal of Cardiovascular Magnetic Resonance  
Contrast enhanced cardiovascular magnetic resonance imaging (ceCMR) can detect and quantify myocardial fibrosis in the setting of CMI and might therefore be a valuable tool for a more accurate risk stratification  ...  For quantitative assessment of infarct morphology late gadolinium enhancement (LGE) was performed including measurement of total and relative infarct mass (related to LV mass) and the degree of transmurality  ...  Conclusion: We presented a robust, accurate and efficient method for the fully automatic delineation of the myocardium contours in LA + SA cine CMR images, which can be used for accurate LV functional  ... 
doi:10.1186/1532-429x-11-s1-p50 fatcat:gvkd2vubmbco3fu62u4cjjsh6u

Robotic-Assisted Ultrasound for Fetal Imaging: Evolution from Single-Arm to Dual-Arm System [chapter]

Shuangyi Wang, James Housden, Yohan Noh, Davinder Singh, Anisha Singh, Emily Skelton, Jacqueline Matthew, Cornelius Tan, Junghwan Back, Lukas Lindenroth, Alberto Gomez, Nicolas Toussaint (+11 others)
2019 Lecture Notes in Computer Science  
Based on the preliminary testing of these newly-proposed robots on 42 volunteers, the successful and reliable working of the mechatronic systems were validated.  ...  The development of robotic-assisted extracorporeal ultrasound systems has a long history and a number of projects have been proposed since the 1990s focusing on different technical aspects.  ...  Based on the preliminary testing of these newly-proposed robots on 42 volunteers, the successful and reliable working of the mechatronic systems were validated.  ... 
doi:10.1007/978-3-030-25332-5_3 fatcat:gletw4ktenfcxkw62yttsjpwz4

Robotic-assisted Ultrasound for Fetal Imaging: Evolution from Single-arm to Dual-arm System [article]

Shuangyi Wang, James Housden, Yohan Noh, Davinder Singh, Anisha Singh, Emily Skelton, Jacqueline Matthew, Cornelius Tan, Junghwan Back, Lukas Lindenroth, Alberto Gomez, Nicolas Toussaint, Veronika Zimmer (+9 others)
2019 arXiv   pre-print
Based on the preliminary testing of these newly-proposed robots on 42 volunteers, the successful and re-liable working of the mechatronic systems were validated.  ...  The development of robotic-assisted extracorporeal ultrasound systems has a long history and a number of projects have been proposed since the 1990s focusing on different technical aspects.  ...  This work was supported by the Wellcome Trust IEH Award  ... 
arXiv:1902.05458v3 fatcat:2z6aexyl2zairanle6kkdvntzu

Anthropomorphic breast phantoms for testing elastography systems

Ernest L. Madsen, Maritza A. Hobson, Gary R. Frank, Hairong Shi, Jingfeng Jiang, Timothy J. Hall, Tomy Varghese, Marvin M. Doyley, John B. Weaver
2006 Ultrasound in Medicine and Biology  
Two equivalent anthropomorphic breast phantoms were constructed, one for use in ultrasound elastography and the other in magnetic resonance (MR) elastography.  ...  Examples of ultrasound and MR elastograms of the phantoms are included to demonstrate the utility of the phantoms.  ...  Acknowledgements-This work was supported in part by NIH grants R01EB000459, R21EB003853 and R01CA100373.  ... 
doi:10.1016/j.ultrasmedbio.2006.02.1428 pmid:16785008 pmcid:PMC1761921 fatcat:i2gheasfjjbhtmhkha3vbjhhva

Development of a Hybrid Magnetic Resonance and Ultrasound Imaging System

Victoria Sherwood, John Civale, Ian Rivens, David J. Collins, Martin O. Leach, Gail R. ter Haar
2014 BioMed Research International  
A study of MR and B-mode US image signal-to-noise ratio (SNR) as a function of transducer-phantom separation was performed using a gel phantom.  ...  The system was subsequently demonstrated as a tool for the targeting and visualisation of high intensity focused ultrasound exposure in the rat thigh muscle.  ...  The authors thank Mike Sekins (Siemens Healthcare) for his work in customising the ultrasound imaging transducer and Chris Bunton (The Institute of Cancer Research) for his work on the design and construction  ... 
doi:10.1155/2014/914347 pmid:25177702 pmcid:PMC4142177 fatcat:fo42cswnzfe3dgpphcuqmp7wda

A Preliminary Study on the Adaptive SNR Threshold Method for Depth of Penetration Measurements in Diagnostic Ultrasounds

Giorgia Fiori, Fabio Fuiano, Andrea Scorza, Jan Galo, Silvia Conforto, Salvatore Andrea Sciuto
2020 Applied Sciences  
Maximum depth-of-penetration (DOP) is among the most relevant parameters in quality assurance programs for Ultrasound (US) scanners.  ...  Most of measurement results were compatible despite the fact that the AdSTM seemed to be more sensitive and faster than the TTM.  ...  Acknowledgments: The authors wish to thank SAMSUNG Healthcare, PHILIPS Healthcare, SIEMENS Healthineers, and ESAOTE for hardware supply and technical assistance in data collection.  ... 
doi:10.3390/app10186533 doaj:79e505a0bdf649b9b965f5d1dcdb7bee fatcat:fvwietulbzc6jeblytglcopvem

A Ratiometric Fluorescence Imaging System for Surgical Guidance

Eduardo H. Moriyama, Anthony Kim, Arjen Bogaards, Lothar Lilge, Brian C. Wilson
2008 Advances in Optical Technologies  
The performance was characterized, and the algorithm was validated in tissue-simulating optical phantoms for quantitative measurement of the fluorescent molecule protoporphyrin IX (PpIX).  ...  This incorporates a ratiometric algorithm to correct for the effects of tissue optical absorption and scattering, imaging "geometry" and tissue autofluorescence background.  ...  Kai Zhang for his assistance with the imaging system and Mathieu Roy for preparing the phantoms.  ... 
doi:10.1155/2008/532368 fatcat:dffg4ffn6jao7noxn5dk57cjia

Evaluation of Formalin Fixation for Tissue Biopsies Using Shear Wave Laser Speckle Imaging System

Saniel D. Lim, Qixuan Huang, Eric J. Seibel
2019 IEEE Journal of Translational Engineering in Health and Medicine  
Fixation levels in terms of shear wave velocity increased by approximately 271.0% and 130.8% in gelatin phantom and chicken breast, respectively, before reaching the plateaus at 10.91 m/s and 7.88 m/s.  ...  This optical-based approach demonstrates the feasibility of fine-tuning preanalytical variables, such as fixation time, for a rapid and accurate histopathological evaluation; provides a quality metric  ...  Rodney Schmidt through the NorthWest BioTrust. Q. Huang was with the University of Washington, Seattle, WA 98105 USA.  ... 
doi:10.1109/jtehm.2019.2909914 pmid:31065465 pmcid:PMC6500782 fatcat:sfymiamst5cxxane5hpdh4ffzq

High-Frame-Rate Power Doppler Ultrasound Is More Sensitive than Conventional Power Doppler in Detecting Rheumatic Vascularisation

Myrthe van der Ven, Jolanda J. Luime, Levinia L. van der Velden, Johan G. Bosch, Johanna M.W. Hazes, Hendrik J. Vos
2017 Ultrasound in Medicine and Biology  
study in healthy controls and in RA patients with different disease activities.  ...  We investigated the sensitivity of high-frame rate Doppler, combined with singular value decomposition technique, to suppress tissue signals, for microvascular flow in a flow phantom setup and in a proof-of-principle  ...  Acknowledgments-We thank Michiel Manten, Geert Springeling and Alex Brouwer of the Experimental Medical Instrumentation of the Erasmus Medical Center for developing the flow phantom and the experimental  ... 
doi:10.1016/j.ultrasmedbio.2017.04.027 pmid:28645795 fatcat:nsau7uemlbe7hkwfont7nxzisu

An image based vibration sensor for soft tissue modal analysis in a Digital Image Elasto Tomography (DIET) system

Sheng Feng, T Lotz, J G Chase, C E Hann
2010 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology  
Knowledge of frequency response characteristics of a breast prior to imaging is critical to maximize the imaging signal and diagnostic capability of the system.  ...  Digital Image Elasto Tomography (DIET) is a non-invasive elastographic breast cancer screening technology, relying on image-based measurement of surface vibrations induced on a breast by mechanical actuation  ...  I sincerely appreciate the time and effort they have spent on supervising my studies. I am also indebted to Larry Podmore from Boundary LifeSciences, who introduced me to this great project.  ... 
doi:10.1109/iembs.2010.5626070 pmid:21095636 fatcat:vevkos37mfgf5hc6rocefmbjwa
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