steady-state free precession sequence
Diagnostic Value of Increased Diffusion Weighting of a Steady state Free Precession Sequence for Differentiating Acute Benign Osteoporotic Fractures from Pathologic Vertebral Compression Fractures
... tent after radiation, or to a different diffusion ca- pacity in necrotic cells as compared with viable tu- mor tissue. The latter phenomenon has been found in subcutaneously implanted tumors in rats and mice (5–7). ...
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Optimization of steady‐state free precession MRI for lung ventilation imaging with 19F C3F8 at 1.5T and 3T
... In free‐gas phantoms, C 3 F 8 gas has a longer T 2 (~17 ms 17 ) when compared with other fluorinated gases ( ∼ ...21 Sequence optimization for perfluorocarbon emulsions has also been performed previously, ...
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Clinical validation of free breathing respiratory triggered retrospectively cardiac gated cine balanced steady state free precession cardiovascular magnetic resonance in sedated children
... SSFP sequence was modi- fied to include respiratory triggering with the ability to have a user-prescribed trigger point and trigger delay, and a user-prescribed minimum duration for start-up excitations (to drive ...
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Gadolinium free cardiovascular magnetic resonance with 2 point Cine balanced steady state free precession
... CMR was performed on a 1.5 T Siemens MAGNE- TOM Aera scanner (Siemens Medical Imaging Solu- tions, Erlanger, Germany) using an 18 channel body coil and 12 channel spine coil. A short-axis stack of bSSFP cine images were ...
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High throughput gadobutrol enhanced CMR: a time and dose optimization study
... balanced steady state free precession (bSSFP) cine-sequence was performed in combination with parallel imaging (Sensitivity Encoding, factor 2) and retrospective cardiac gating during ...
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Reference right atrial dimensions and volume estimation by steady state free precession cardiovascular magnetic resonance
... CMR was performed with 1.5 T scanners (Siemens Sonata and Avanto) using front and back surface coils and retrospective ECG triggering for capture of the en- tire cardiac cycle including diastole. All CMR scans were ...
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Optimization and Initial Experience of a Multisection Balanced Steady State Free Precession Cine Sequence for the Assessment of Fetal Behavior in Utero
... cine sequence was selected for optimization, and various compromises were explored in all acquisition parameters to achieve an effective balance between anatomic coverage of the fetus and the temporal resolution ...
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Assessment of myocardium at risk with contrast enhanced steady state free precession cine cardiovascular magnetic resonance compared to single photon emission computed tomography
... was chosen at one week to avoid the early infarct phase where a rapid decrease in infarct size has been reported [25]. Two 1.5 T systems were used: Signa Excite Twin- Speed (General Electric Healthcare, Waukesha, WI, ...
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1134 Steady state free precession (SSFP) improves signal to noise ratio in strain encoded (SENC) imaging
... pulse sequence allows for high SNR cardiac func- Simulation results for the signal intensity in both SPGR and SSFP sequences for different last flip values and with a TFE factor = 6 and tr = ...
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Cardiovascular magnetic resonance findings in patients with PRKAG2 gene mutations
... CMR was performed with 1.5 T MR scanner (Avantofit; Siemens, Erlangen, Germany) using a 32-channel receiver cardiac coil. Breath-hold cine MR was performed using retrospectively electrocardiographically gated segmented ...
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Multimodal imaging of the tricuspid valve: normal appearance and pathological entities
... using steady-state free precession (SSFP) sequences in multiple planes, particularly the four- chamber, RV long-axis and short-axis views through the tricuspid annulus and ...
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Transition into Driven Equilibrium of the Balanced Steady State Free Precession as an Ultrafast Multisection T2 Weighted Imaging of the Brain
... seconds. Thus, the results of our study design only validate the imaging quality on the basis of axial images. Second, qualitative evaluation of imaging was reported on the basis of only 2 experi- enced raters. Yet since ...
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Three dimensional MR of the inner ear with steady state free precession
... SSFP sequence, each excitation pulse serves as the refocusing pulse for the previous ...refocused free induction decay se- quences for equal echo ...long-echo-time, free induction decay– refocused ...
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Magnetic resonance imaging in children: common problems and possible solutions for lung and airways imaging
... Steady-state free precession sequences are commonly used in chest ...preferred sequence to visualize lung parenchyma in volunteers with the fewest motion artifacts ...that ...
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Magnetic resonance assessment of left ventricular volumes and mass using a single-breath-hold 3D k-t BLAST cine b-SSFP in comparison with multiple-breath-hold 2D cine b-SSFP
... balanced steady-state free precession gradient echo sequence (b-SSFP) is currently considered the preferred method to assess LV volume and function because of its high spatial and ...
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Non-contrast coronary artery wall and plaque imaging using inversion-recovery prepared steady-state free precession
... angiography, steady-state free precession (SSFP) provides a high signal-to-noise ratio and high contrast-to-noise ratio with a shorter acquisition time when compared with gradient echo ...
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Use of quantitative T2 mapping for the assessment of renal cell carcinomas: first results
... balanced steady-state free precession T2 mapping se- quence (T2-prepared single-shot TrueFISP) in coronal plane, which was adjusted to the long axis of the ...echo sequence (HASTE), a ...
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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, ...
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Comparison of short axis and long axis acquisitions of T1 and extracellular volume mapping using MOLLI and SASHA in patients with myocardial infarction and healthy volunteers
... MOLLI sequence was used to acquire a single mid- ventricular short-axis image and three long-axis im- ages (two-chamber, three-chamber and four-chamber) whereas a prototype SASHA sequence was used to ...
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Validation of T1 and T2 algorithms for quantitative MRI: performance by a vendor-independent software
... echo sequence was used with a short echo time and long repetition time (Table ...the free-breathing bSSFP sequence were used for T1 mapping; one based on SR and one based on IR preparation pulses ...
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