7 contrast enhanced mr angiography excluding coronary arteries
Báo cáo khoa hoc:" The contrast-enhanced Doppler ultrasound with perfluorocarbon exposed sonicated albumin does not improve the diagnosis of renal artery stenosis compared with angiography" pptx
Ngày tải lên :
11/08/2014, 08:20
... obtained with non -enhanced or enhanced with PESDA ultrassonography in the ostium of renal arteries Non -enhanced Enhanced p Arteries without stenosis n = 37 PSV (cm/s) PDV (cm/s) RRA RI PI Arteries with ... with non -enhanced or enhanced with PESDA ultrassonography in the proximal portion of renal arteries Non -enhanced Enhanced p Arteries without stenosis n = 37 PSV (cm/s) PDV (cm/s) RAR RI PI Arteries ... were higher in arteries with stenosis, in either enhanced or nonenhanced US In the proximal segment, only RAR values were higher in arteries with stenosis, in both enhanced and non -enhanced US The...
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Non rigid registration of contrast enhanced dynamic MR mammography
Ngày tải lên :
26/11/2015, 23:08
... glandular The best way of using MRI in mammography is in contrast -enhanced MRI (CE-MRI), also known as Gd-DTPA MRI (Heywang-Köbrunner & Beck, 1996) or MR mammography (MRM) It requires the intravenous ... 92 7.1 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 ... using MRI in a clinical setting For a more detailed discussion on MRM please refer to Wang (1999) Table 2.1: Summary of comparison between X-ray and CE-MRI mammography Dimension X-Ray CE-MRI 2-D...
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Tài liệu Báo cáo khoa học: Autolytic activity of human calpain 7 is enhanced by ESCRT-III-related protein IST1 through MIT–MIM interaction pptx
Ngày tải lên :
18/02/2014, 04:20
... as p94 ⁄ calpain and nCL-2 ⁄ calpain 8, have been suggested to have specific roles [10–12] As the mRNA of calpain is expressed ubiquitously in human tissues, calpain is expected to have fundamental ... detect proteolysed fragments of mGFP–calpain 7–Strep As expected, addition of GST–IST1 and GST–MIM enhanced the generation of 30 K, but addition of GST did not (Fig S1) As the purified recombinant ... triangle N-terminal half (GST–CHMP6NT) as a negative control As shown in Fig 7B, addition of GST–MIM enhanced the generation of 30 K, but only a marginal enhancing effect was observed with the addition...
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Báo cáo hóa học: " Automatic Characterization of Myocardial Perfusion in Contrast Enhanced MRI" pptx
Ngày tải lên :
23/06/2014, 01:20
... yet 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 ... related perfusion indexes MATERIAL AND METHODS 2.1 MRI perfusion imaging protocol All exams are a set of Gd-DTPA contrast -enhanced cine cardiac MRI acquired by using a GE Signa Horizon LX system ... 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...
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Báo cáo toán học: "Contrast-Enhanced Ultrasonograpic Findings in Pancreatic Tumors Chiara RECALDINI, Gianpaolo CARRAFIELLO, Elena BERTOLOTTI, Maria Gloria ANGERETTI, Carlo FUGAZZOLA" ppsx
Ngày tải lên :
08/08/2014, 17:20
... microcystic adenoma C Axial T2-weighted MR image shows a hyperintese lesion made up of cluster of microcysts D Axial gadolinium -enhanced fat-suppressed T1-weighted MR image depicts the honeycomb appearance ... of contrast -enhanced ultrasonography World J Gastroenterol 2006; 12:4181-4184 Kim T, Muratami T, Takamura M, et al Pancreatic mass due to chronic pancreatitis: correlation of CT and MR imaging ... Wermke O, Wermke W Differentiation of pancreatic tumors by conventional ultrasound, unenhanced and echo -enhanced power Doppler sonography Scand J Gastroenterol 2002; 37:1313-1320 D’Onofrio M,...
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Báo cáo khoa học: " A case report of pseudoprogression followed by complete remission after proton-beam irradiation for a low-grade glioma in a teenager: the value of dynamic contrast-enhanced MRI" pptx
Ngày tải lên :
09/08/2014, 10:20
... susceptibility-weighted contrast -enhanced perfusion MR imaging Radiology 2009, 253:486-496 Dandois V, Rommel D, Renard L, Jamart J, Cosnard G: Substitution of 11Cmethionine PET by perfusion MRI during the follow-up ... on conventional MRI and disappearance of both contrast enhancement and high permeability area strongly suggested a pseudo-progression rather than recurrent disease Follow-up MRI at nine months ... http://www.ro-journal.com/content/5/1/9 Figure Conventional MR imaging before and six months after exclusive Proton therapy [A] T1-weighted transaxial MR image after administration of intravenous (iv)...
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Báo cáo y học: "Unstable angina early after aortic valve replacement surgery in a female patient with normal coronary arteries preoperatively – a case report" pot
Ngày tải lên :
10/08/2014, 10:20
... and normothermic Figure left coronary artery Preoperative coronary angiography (RAO view) showing the Preoperative coronary angiography (RAO view) showing the left coronary artery Page of (page ... Usually, symptoms Figure the left coronary artery Postoperative coronary angiography (RAO view) showing Postoperative coronary angiography (RAO view) showing the left coronary artery Page of (page ... are coronary embolism, progression of coronary heart disease in patients with coronary atherosclerosis, graft occlusion in patients with concomitant aortocoronary bypass (ACBP) and iatrogenic coronary...
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Báo cáo y học: "Primary congenital anomalies of the coronary arteries and relation to atherosclerosis: an angiographic study in Lebanon" doc
Ngày tải lên :
10/08/2014, 10:20
... Circumflex (LCX) coronary artery arising from right coronary sinus, LCX arising as early branch of Right Coronary Artery (RCA), left anterior descending coronary artery (LAD) arising from right coronary ... patients who underwent coronary angiography were reviewed Thirty-four patients who had anomalous origins of coronary arteries from the aorta were entered into final data analysis Angiography was indicated ... Anomalous coronary artery 34 0.73% 100% CAD: Coronary artery disease Right Coronary Artery: RCA Left Circumflex: LCX LAD: Left anterior descending artery LMCA: Left main coronary artery RCS: Right coronary...
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Báo cáo khoa hoc:" Multiple microvessels extending from the coronary arteries to the left ventricle in a middle aged female presenting with ischaemic chest pain: a case report" doc
Ngày tải lên :
11/08/2014, 10:22
... significant primary anomalies of the coronary arteries Circulation 1978, 58:25-34 Said SAM, Van der Werf : Dutch survey of congenital coronary artery fistulas in adults: Coronary artery left ventricular ... to visualize the entire length of the communications joining the coronary arteries to the cavity of the left ventricle The right coronary artery was also affected by the same phenomenon, but to ... projection the right coronary artery to fill the straight 3extending from shows intra-muscular micro-chanA late intra -coronary injection of contrast visualized in the A late intra -coronary injection...
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Báo cáo y học: " Myocardial infarction with normal coronary arteries: a case report and review of the literature" pps
Ngày tải lên :
11/08/2014, 19:21
... (AHA/ACC), there was thus no indication for conventional coronary angiography Consequently, we decided to study her coronary arteries non-invasively MSCT angiography was performed using a 64-slice computed ... outcomes She was studied by MSCT angiography, which showed normal coronary arteries This case report raises two important issues First, the possible role of MSCT coronary angiography in risk- and prognosis ... Figure circulation Coronary computed tomography angiography shows absence of flow limiting stenosis in both left (1a) and right (1b) coronary Coronary computed tomography angiography shows absence...
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Báo cáo y học: "Detection of vascularity in wrist tenosynovitis: power doppler ultrasound compared with contrast-enhanced grey-scale ultrasound" pdf
Ngày tải lên :
12/08/2014, 15:22
... consuming, although both factors are much less than those of contrastenhanced MRI Ultrasound contrast agents have some advantages over MRI contrast agents, because they are less likely to leak into ... cyclic citrullinated peptide; CDUS: color Doppler ultrasound; CE-MRI: contrast -enhanced magnetic resonance imaging; CEUS: contrast -enhanced grey-scale ultrasound; ECU: extensor carpi ulnaris; ESR: ... The MRI view of synovitis and tenosynovitis in inflammatory arthritis: implications for diagnosis and management Ann N Y Acad Sci 2009, 1154:21-34 35 Bremerich J, Bilecen D, Reimer P: MR angiography...
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Magnetic resonance imaging techniques for contrast enhanced cellular and molecular imaging
Ngày tải lên :
11/09/2015, 10:01
... change in T1-weighted DCE-MRI of mouse pancreas 2.3 Dual-compartment model in quantitative DCE-MRI 2.4 Schematic of a typical DCE-MRI acquisition protocol 2.5 Quick MRI localization of mouse ... 2.4.3 Pharmacokinetic Modeling with DCE-MRI 33 2.4.4 Contrast Agents for T1-weighted DCE-MRI 37 2.4.5 Definition of Semi-Quantitative DCE-MRI Parameters 38 2.4.6 Pharmacokinetics ... 4.2 PROBING CARDIAC METABOLIC ACTIVITY WITH STEADY-STATE 13C NMR / MRS 164 4.2.1 Low Detection Sensitivity in 13C NMR 165 4.2.2 Hyperpolarized 13C Compounds for Signal...
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4D non rigid registration of renal dynamic contrast enhanced MRI data
Ngày tải lên :
15/09/2015, 22:34
... further when dynamic contrast enhanced- magnetic resonance imaging (DCEMRI) is involved Registration of DCE-MRI images is a major challenge, as the acquired images by DCE-MRI exhibit rapid intensity ... and medulla Fig.1.2 Cerebral perfusion MRI images taken from http://emedicine.medscape.com/ Fig.1.3 MRI perfusion map taken from http://www.rcnd.com/PerfusionMRI.html Fig.1.4 Sample kidney images ... to a tumor Fig.1.2 Cerebral perfusion MRI images taken from http://emedicine.medscape.com/ Fig.1.3 MRI perfusion map taken from http://www.rcnd.com/PerfusionMRI.html The location marked with an...
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Fast registration of contrast enhanced magnetic resonance images of the breast
Ngày tải lên :
06/10/2015, 20:49
... implementation viii Chapter Introduction 1.1 Background Contrast -enhanced magnetic resonance mammography (CEMRM) uses magnetic resonance imaging (MRI) to obtain the 3-D image of the human breast A bolus ... registration can be made accurate and reliable, CEMRM can be more reliably applied for breast cancer detection Registration of contrast -enhanced breast MR images has been studied by several research ... image subtraction available in clinical MRI workstations not use any formal registration scheme, and assume negligible patient motion between acquisitions CEMRM offers better tissue sensitivity...
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Tracking of coronary arteries in angiogram sequence by structural matching of junctions
Ngày tải lên :
12/10/2015, 17:33
... the coronary arteries To obtain a 4D model, two important steps are needed: (1) track the coronary arteries within each angiogram sequence and (2) establish correspondence between coronary arteries ... Biplane and rotational angiography have some shortcomings Biplane angiography needs special equipment to capture two views of the coronary arteries at the same time Rotational angiography exposes ... approaches have been investigated to reconstruct a 3D model of the coronary arteries: biplane angiography and rotational angiography Biplane angiography uses a special equipment with two x-ray sources...
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Uric acid levels and the risk of contrast induced nephropathy in patients undergoing coronary angiography or PCI pdf
Ngày tải lên :
24/08/2016, 14:06
... CIN Coronary angiography Coronary angiography was routinely performed by the Judkins technique using 6-French right and left heart catheters through the femoral or radial approach Quantitative coronary ... undergoing coronary angiography and/or Please cite this article in press as: Barbieri L, et al., Uric acid levels and the risk of Contrast Induced Nephropathy in patients undergoing coronary angiography ... M Z mean; SD Z standard deviation; CAD Z coronary artery disease; AMI Z acute myocardial infarction; PCI Z percutaneous coronary intervention; CABG Z coronary artery by-pass graft; CVA Z cardiovascular...
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Báo cáo y học: "Gain of a 500-fold sensitivity on an intravital MR Contrast Agent based on an endohedral Gadolinium-Cluster-Fullerene-Conjugate: A new chance in cancer diagnostics"
Ngày tải lên :
26/10/2012, 09:07
... to consider the MRI-measurements, described below as a basis for determining MRI tomographical signals in comparison to the commonly used MRI contrast agent (CA) Gd-DTPA 143 MRI-Measurements ... advance: The way from a MRI tomographical signal is still far from a contrast agent in MRI The first measurements could demonstrate: As shown here, our new intracellular MRI contrast agent (CA) ... imaging with MRT are a perspicuous signal and a sufficient accumulation of contrast agent (CA) within the target cells There are numerous approaches[30, 31] but further developments of MR contrast...
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Báo cáo y học: "Comparison of a Two-Lead, Computerized, Resting ECG Signal Analysis Device, the MultiFunction-CardioGramsm or MCG (a.k.a. 3DMP), to Quantitative Coronary Angiography for the Detection of Relevant Coronary Artery Stenosis (70%)
Ngày tải lên :
03/11/2012, 10:58
... imaging /angiography (MRI/MRA), electron beam angiography (EBA), or positron-emission tomography with CT (PET-CT) have an alleged high sensitivity and specificity for detecting morphologic coronary ... including pre-test probabilities for CAD and the coronary angiography findings from the study patients Angiography After the MCG test, coronary angiography was performed at the discretion of the ... role of coronary angiography and coronary revascularization before noncardiac vascular surgery JAMA 1995;273:1919-1925 Scanlon PJ, Faxon DP, Audet AM, et al ACC/AHA guidelines for coronary angiography: ...
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dùng flipflop thiết kế bộ đếm 8 bit có chức năng mr,load,updown, hiển thị led 7 đoạn
Ngày tải lên :
05/05/2014, 14:02
... IC 4520 + Sơ đồ chân CD4520 Q3A CP0A Q2A CP1A Q1A MRA Q0A 14 10 CP0B Q3B 13 15 CP1B Q2B 12 MRB Q1B 11 Q0B Gồm hai đếm nhị phân riêng biệt Chân MR: mắc dây preset đếm L đến đếm H đến xoá Chân CP0: ... cao(=1) mạch hoạt động đợc - Chân 14 (MR_ asynchronous master reset input):chân để xoá nội dung đếm.khi mức lôgic chân=1logic(mức cao) đếm bị xoá,để mạch để mạch đếm đợc MR= logic(mức thấp) mức logic ... ngành công nghiệp Trong nội dung đồ án dùng Flip Flop thích hợp thiết kế đếm bit có chân chức sau: MR, LOAD, up/ down, số đếm đợc hiển thị qua led đoạn FF-JK có mạch hiển thị số LED đoạn Do trình...
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