Cardiac First Pass Perfusion
Feasibility of simultaneous PET-MR perfusion using a novel cardiac perfusion phantom
... the first simultaneous PET-MR acquisitions from a dynamic cardiac perfusion phantom, showing similar first-pass dynamics of both the PET and MR contrast ...MR perfusion using a ...
14
Three dimensional first pass myocardial perfusion imaging at 3T: feasibility study
... in-vivo perfusion images showed flickering arti- facts due to errors in sensitivity map used for SENSE ...current cardiac cycle, and combining outer part of k-space from neighbor- ing cardiac ...
10
Feasibility of biventricular volume and function assessment using first-pass gated 15O-water PET
... a first-pass gated 15 O-water ...myocardial perfusion reserve assessment using 15 O-water ...gated first-pass images were reconstructed over the time range corresponding to tracer ...
9
First Pass Quantitative CT Perfusion Identifies Thresholds for Salvageable Penumbra in Acute Stroke Patients Treated with Intra arterial Therapy
... Limitations of our study include initial and follow-up scan times, follow-up images (CT or MR), treatment (IA throm- bolysis and mechanical clot retrieval), and the degree of recan- alization varied. Tissue viability ...
6
A review of 3D first pass, whole heart, myocardial perfusion cardiovascular magnetic resonance
... Sampling with projections (Fig. 2c) through the centre of k-space (‘projection acquisition’ or ‘diametrical sam- pling’) is now often named ‘radial’ imaging. For Nyquist sampling at the edges of the acquired k-space, ...
25
Regadenoson and adenosine are equivalent vasodilators and are superior than dipyridamole a study of first pass quantitative perfusion cardiovascular magnetic resonance
... of perfusion slices was limited to the mid ...quantitative perfusion in normal volunteers suggested that there was a modest increase in stress MBF in diastole compared to systole ...the cardiac cycle ...
9
Myocardial first pass perfusion imaging with hybrid EPI: frequency offsets and potential artefacts
... array cardiac coils. Perfusion imaging was performed in three short-axis slices (basal, mid and apical) for each heartbeat for at least 50 R-R intervals at stress and then repeated at ...
8
Cardiac CT and MRI guide surgery in impending left ventricular rupture after acute myocardial infarction
... the first pass perfusion images ...The first pass perfusion defect persisted on the delayed enhancement MR images taken 55 minutes after the gadolinium injection ...
5
Appearance of microvascular obstruction on high resolution first pass perfusion, early and late gadolinium enhancement CMR in patients with acute myocardial infarction
... resolution first- pass perfusion CMR detected MO more frequently and to a greater extent than either early or late gadolinium enhancement CMR ...that first-pass perfusion imaging ...
9
Timing optimization of low-dose first-pass analysis dynamic CT myocardial perfusion measurement: validation in a swine model
... between cardiac output and peak enhance- ment ...FPA perfusion technique is feasible, they also indicate the potential for optimal timing for CT angiography, as they enable the peak of the aortic ...
9
Feasibility of high resolution quantitative perfusion analysis in patients with heart failure
... 32-channel cardiac phased array receiver coil (Philips, Best, the ...Netherlands). First pass per- fusion imaging consisted of a high-resolution kt turbo- gradient echo sequence (imaging parameters: ...
11
First pass perfusion CMR two days after infarction predicts severity of functional impairment six weeks later in the rat heart
... progressive cardiac remo- deling ...by perfusion imaging because it is the reduced perfusion that ultimately results in cell necrosis, membrane rupture, reduced con- tractility, remodeling and heart ...
10
Coronary microvascular ischemia in hypertrophic cardiomyopathy a pixel wise quantitative cardiovascular magnetic resonance perfusion study
... for perfusion imaging with the following typical sequence parameters: fat saturation pulse, composite 90° saturation preparation pulse for each slice [28], 28° readout pulse, saturation recovery time to central ...
10
Theoretic Basis and Technical Implementations of CT Perfusion in Acute Ischemic Stroke, Part 1: Theoretic Basis
... P art 1 of this review establishes the clinical context of CT perfusion (CTP). Next, a discussion follows on CTP map construction by using the maximal slope method and the 2 main deconvolution techniques, Fourier ...
7
Reproducibility of adenosine stress cardiovascular magnetic resonance in multi vessel symptomatic coronary artery disease
... analyses. Perfusion was assessed qualitatively and ...gross cardiac motion and images were windowed appropriately to opti- mize visualization of perfusion defects, with the same parameters used for ...
11
Cardiovascular magnetic resonance artefacts
... the cardiac cycle, thus poten- tially including periods of more rapid cardiac ...the cardiac cycle, which in turn reduces cardiac motion ...
39
Quantitative three dimensional myocardial perfusion cardiovascular magnetic resonance with accurate two dimensional arterial input function assessment
... In this study a dual-sequence approach for high- resolution quantitative 3D first-pass myocardial perfu- sion CMR has been presented. By using interleaved 2D and 3D acquisitions in each heartbeat, sequence ...
11
Paroxysmal supraventricular tachycardia as first manifestation of right atrial hemangioma during endovascular treatment of intracranial arteriovenous fistulas
... on first-pass perfusion (Video 3) after administration of gadolinium and inhomogeneous delayed enhancement. Blood investigations, thrombophilic screening, neoplastic markers and autoimmune assays ...
5
Multimodality Imaging Evaluation of Functional and Clinical Benefits of Percutaneous Coronary Intervention in Patients with Chronic Total Occlusion Lesion
... The relative lower rates of PCI related complica- tion might have been caused by the drug-eluting stents (DES) implantation. The introduction of DES, which has been demonstrated to cause less restenosis than bare-metal ...
13
UK perspective on the changing landscape of non-invasive cardiac testing
... Second, increased availability of testing demonstrated by this data does not mean these tests are being utilised appropriately as per guideline recommendations. In fact, the persistently high use of ETT even in 2016–2017 ...
8