alternative to � contrast enhanced mr imaging

... Gy) MR Imaging Protocol Magnetic resonance imaging was performed with a 1.5 T MR system (Gyroscan, Intera, Phillips Medical Systems, Best, The Netherlands) employing a SENSE torso surface coil Imaging ... at three time points: Baseline MRI was performed at a mean of days (range: - 36 days) prior to CT- or MRI-guided HDRBT All but one patient received early MRI one to three days after HDR-BT Another ... follow-up MRI compared to baseline MRI Boxplot illustrates changes of mean ADC of non-treated and treated colorectal liver metastases days (early MRI) as well as months (follow-up MRI) following...

Ngày tải lên: 09/08/2014, 09:20

... emission tomography (PET), single-photon emission computed tomography (SPECT), bioluminescence imaging (BLI), optical fluorescence imaging, magnetic resonance imaging (MRI), computed tomography ... order to generate an MR signal, the magnetization vector has to be tipped away from the external field direction in order to set it into precession This is accomplished by using a transmit coil to ... or cells to differentiate them from the background This methodology extends the sensitivity limit of MRI and enables applications beyond routine anatomical imaging With respect to MR contrast...

Ngày tải lên: 11/09/2015, 10:01

... Summary 92 7.2 Future work 93 REFERENCES 95 iii SUMMARY Contrast- enhanced dynamic MRI (CE-MRI) or MR mammography (MRM) is an alternative method to conventional X-ray mammography for non-invasive detection ... radiation risk Contrast- enhanced MRI (CE-MRI) has been proposed as an alternative method to conventional X-ray mammography for non-invasive detection of breast cancer MRI is superior in its 3-D tomography, ... 30-60 seconds; leads to blurring and motion artefacts in dense glandular The best way of using MRI in mammography is in contrast- enhanced MRI (CE-MRI), also known as Gd-DTPA MRI (Heywang-Köbrunner...

Ngày tải lên: 26/11/2015, 23:08

... + C 20 e) E =C C + C C + C C Vấn đề 3: NHỊ THỨC NEWTON Thí dụ 1: Chứng minh rằng: 1+ 4.C n +42.C n +… +4n.C n =5n Giải n Xét khai triển Newton: (1+x)n = C n + C n x + C n x2 +… +C n xn Thế với ... 4: Có số gồm chữ số khác đôi có ba chữ số lẻ ba chữ số chẵn? (chữ số phải khác 0) Vấn đề 2: Các to n liên quan đến AKn ; Ckn ; Pn Thí dụ 1: Giải phương trình: C x+ 7x C + C x= 2 x Giải Điều kiện: ... số ? Có số chẵn gồm chữ số khác đôi một, chữ số số lẻ B HOÁN VỊ, CHỈNH HP, TỔ HP Bài : Xếp sách to n, lý, hóa, sinh vào kệ theo môn (14 quyền khác nhau) hỏi có cách xếp ? Bài : Có số tự nhiên...

Ngày tải lên: 18/08/2013, 14:10

... kind of iterator that delivers an XML document’s components to you, one at a time It is totally up to you to decide when you’re done with the current component, and ready to move to the next one ... cursor to the given attribute (with namespace) bool moveToElement() moves the cursor back to to current element again bool moveToFirstAttribute() moves the cursor to the first attribute bool moveToNextAttribute() ... resources to which it applies are known to be in that character encoding and it is too inconvenient to label their charset individually One such example is to add the charset parameter to resources...

Ngày tải lên: 24/01/2014, 14:20

... during pregnancy (MR imaging should be avoided during the first trimester), follow -ups, or as an alternative to CT for patients with allergies to IV contrast material Performing MRI in children ... that correlated histological data with MRI features [13] Because of its excellent contrast resolution, MRI is superior to CT in assessing pleural involvement [14] Indeed, MRI promptly depicted ... correlated histological data with MRI features in tuberculous lymphadenopathy [10], including signal intensity on unenhanced MR Based on MRI findings, lymph node types could be defined according to the...

Ngày tải lên: 15/02/2014, 12:20

... users to create meaningful locations to store certain files But many directories means many locations, which might mean too many locations; which makes it hard to find the right location to store ... tell the server what directories to scan and where certain new files go, according to their file-type It can also be set to ignore certain directories or files Which mime-type to use for which file extension ... switching to the dbfs is easy This research also shows that it is possible to integrate a new file system on top of what we already have There is no need to rewrite all software if we want to switch to...

Ngày tải lên: 20/02/2014, 05:21

... request] from prosecutors S: [CURTISE: Mr Curtis, JUDGEE: e, REQUESTBN: request, PROSECUTORSBN: prosecutors] that he S: [CURTISE: he, JUDGEE: e, REQUESTBN:request, PROSECUTORSBN: prosecutors] be re-examined ... JUDGEE: ~, REQUESTBN: request, PROSECUTORSBN: prosecutors, YEARBN: year] to see if his S: [CURTISE: his, JUDGEE: ~, REQUESTBN: request, PROSECUTORSBN: prosecutors, YEARBN: year] condition S: [CURTISE: ... with respect to anaphora resolution In contrast to the centering model, my model includes a treatment for intrasentential anaphora and is sufficiently well specified to be applied to real texts...

Ngày tải lên: 20/02/2014, 18:20

... necessary to keep the exchange rate where it is The model says that there is no limit to this process Both economies reach a quasi-stationary state in which all stocks and all flows including the stock ... transactions of two simplified economies which together comprise the whole world The top part of the matrix represents the standard NIPA accounts; the bottom part represents the flow of funds accounts ... comprehensive, because, to help cut off the number of equations, interest income arising from bills has been omitted; it is assumed to be of a second order importance in relation to the main conclusions...

Ngày tải lên: 06/03/2014, 15:21

Ngày tải lên: 24/03/2014, 10:21

... behavior—birds are conveyed toward an automated spinning blade, commonly referred to as the “killing machine,” which is designed to cut their necks Some conscious birds are able to avoid this blade, ... important to note, however, that with the rapid improvements in equipment technology within this sector, it is expected that these costs would be even lower today (Raj 1998) According to Anglia Autoflow’s ... and other inert gases to be less aversive to birds than carbon dioxide.” Other studies confirm that birds, as well as humans, can only tolerate carbon dioxide levels up to 30 percent (Gregory...

Ngày tải lên: 31/03/2014, 08:20

... Service to transplant wild wolves from eastern Canada to Yellowstone They met project leader Mike Phillips and, according to Phillips, “learned that restoration could be an alternative to extinction.” ... oxygen-producing, photosynthesis evolved in cyanobacteria, the world’s most abundant type of phytoplankton Phytoplankton and all land-dwelling plants— which evolved from phytoplankton about 500 million ... solutions to artificially enhance phytoplankton — P.G.F photosynthesis and the biological pump VOLCANISM RESPIRATION AND DECAY PHOTOSYNTHESIS BURNING OF FOSSIL FUELS IRON-RICH DUST PHYTOPLANKTON UPWELLING...

Ngày tải lên: 12/05/2014, 16:13

... theory, he proposes a bold alternative to Cartesian materialism that deserves careful scrutiny." J A Scott Kelso, Glenwood and Martha Creech Chair in Science and Director, Center for Complex Systems ... Communicative Action and Rational Choice Joseph Heath Paper / March 2003 Perspectives on Science: Historical, Philosophical, Social Quarterly (Spring, Summer, Fall, Winter) See Other Titles In: > Cognition, ... General - Philosophy of Mind > Humanities - Philosophy > Neuroscience - Neurophysiology & Neuroanatomy > Philosophy - General - Philosophy of Mind TECHNOLOGY PARTNER: Azility, Inc http://mitpress.mit.edu/catalog/item/default.asp?tid=10688&ttype=2...

Ngày tải lên: 11/06/2014, 12:44

... contributed to study design, western blot, and immunofluorescence YY contributed to the study design and assisted in in vivo studies SC contributed to the cytotoxicity and flow cytometry assays ... and cloned into the pCRBlunt II-TOPO vector using Zero Blunt TOPO PCR Cloning Kit (Invitrogen, Carlsbad, California) The resulting construct pCRII-hNIS-1 was sequenced, and found to contain an ... allowing noninvasive imaging of tumors expressing NIS [22] In contrast to a study published by McCart et al [24] using an oncolytic VACV expressing the human somatostatin receptor hSSTR2, hNIS is...

Ngày tải lên: 18/06/2014, 19:20

... contributed to study design, western blot, and immunofluorescence YY contributed to the study design and assisted in in vivo studies SC contributed to the cytotoxicity and flow cytometry assays ... and cloned into the pCRBlunt II-TOPO vector using Zero Blunt TOPO PCR Cloning Kit (Invitrogen, Carlsbad, California) The resulting construct pCRII-hNIS-1 was sequenced, and found to contain an ... allowing noninvasive imaging of tumors expressing NIS [22] In contrast to a study published by McCart et al [24] using an oncolytic VACV expressing the human somatostatin receptor hSSTR2, hNIS is...

Ngày tải lên: 20/06/2014, 03:20

... value Discussion Several MR imaging- based motion tracking algorithms have been proposed in the literature, for example, tagged MR imaging [41] and phase contrast MR imaging [42], but these all ... developed for application to tagged MR imaging on the upper arm, the methods presented here are not limited to this application and can be applied to validate other types of MR imaging- based motion ... with MR imaging to estimate material deformation,” Radiology, vol 188, no 1, pp 101–108, 1993 [22] C C Moore, S B Reeder, and E R McVeigh, “Tagged MR imaging in a deforming phantom: photographic...

Ngày tải lên: 21/06/2014, 19:20

... measurements of the imaging radar To determine the optimum solution operator, F, we have to differentiate the objective function, Risk(F), with respect to F, set the result to zero, and solve the ... corresponds to the kth pixel value of the SDR-optimised SSP estimate BASF , respectively IOSNR(RSF) corresponds to the RSF estimator and IOSNR(ASF) corresponds to the ASF method According to (27), ... matrix A and tolerance factor α) into the desired solution Nevertheless, it − KA,α = S+ RN1 S + αA−1 −1 (16) For the solution operator (15) (i.e., for the image formation operator (IFO) defined...

Ngày tải lên: 22/06/2014, 23:20

... level with respect to the noise prevents from achieving reasonable performance The easiest way to solve the problem would be to use a set of pilot symbols, sent periodically, to perform the tracking ... sequences, it is necessary to use part of the useful bit rate as pilot symbols In addition, the information about the estimates needs to be sent back to the CO periodically to perform an update of ... Figure 1) is to send back to the CO some very limited amount of information about the signal received at the CPEs Now thanks to the coordination at the CO, all symbols transmitted to all different...

Ngày tải lên: 22/06/2014, 23:20

... available for CM -enhanced cardiac MRI In fact, automatic image segmentation algorithms are very sensitive to signalto-noise ratio that is usually low in CM -enhanced MRI due to the need for very ... from the MR scanner via DICOM (digital imaging and communications in medicine) protocol 2.2 Automatic analysis The automatic analysis of the cardiac perfusion images obtained by CM -enhanced MRI can ... related with the signal -to- noise ratio and can be set to 0.2 in MRI imaging This formulation forces the field to vary slowly in homogeneous regions and to keep v nearly equal to the gradient map where...

Ngày tải lên: 23/06/2014, 01:20

... is due to the plastic tube itself and not due to the water 3.2 Application to in vivo dynamic hyperpolarized gas imaging We applied our post-acquisition keyhole method for dynamic imaging to ventilation ... lung-ventilation imaging using hyperpolarized gas Other possible applications are contrast- enhanced MR angiography, perfusion, interventional imaging, cancer detection using contrast agents, ... UMR 5012, NMR Laboratory in Lyon, France His interests are MRI biomedical applications including imaging sequences and methodological developments His research projects are currently devoted to...

Ngày tải lên: 23/06/2014, 01:20