Absolute temperature imaging using intermolecular multiple quantum MRI
نویسندگان
چکیده
منابع مشابه
Intermolecular Double-Quantum-Coherence Imaging
Introduction Recently we have demonstrated a new type of MRI based on detection of intermolecular zero-quantum coherences (iZQCs) both in vitro and in viva.‘,’ These coherences correspond to simultaneously flipping two water spins in opposite directions on molecules separated by 10 pm 10 mm. It is also possible to detect intermolecular double quantum coherences (iDQCs) corresponding to simultan...
متن کاملIntermolecular Multiple Quantum Coherences in Liquids
In the early 1990s, the traditional framework of NMR spectroscopy was challenged through a series of simple experiments. The pulse sequences used consisted of a few RF pulses and a few gradient pulses, and the samples were mixtures of simple molecules. The spectra showed unexpected cross peaks between spins in different molecules. ( ) In order to explain these results, two basic assumptions had...
متن کاملA Temperature Compensation Voltage Controlled Oscillator Using a Complementary to Absolute Temperature Voltage Reference
This paper presents a temperature compensation voltage controlled oscillator (VCO) based on Cross-Coupled pair and Colpitts structures which is suitable for military fields. Also, two inductors have been used for increasing the negative conductance. By using this method, start-up condition has been improved. Two varactors and a simple capacitor bank are applied for covering a wide tunning range...
متن کاملMagnetic resonance microscopic imaging based on high-order intermolecular multiple-quantum coherences.
Most imaging studies using intermolecular multiple-quantum coherences (iMQCs) have focused on the two-spin dipolar interactions--zero and double quantum coherences. Here, we report the results of various experimental studies to assess the feasibility of magnetic resonance microscopy with high-order iMQCs in model systems at 7 and 14 T. Experimental results demonstrated that the iMQC microscopic...
متن کاملMagnetic Resonance Imaging of the Distant Dipolar Field in Structured Samples Using Intermolecular Multiple-Quantum Coherences of Various Orders
L. Bouchard, X. Tang, C. Chin, F. W. Wehrli, W. S. Warren Princeton University, Princeton, New Jersey, United States, University of Pennsylvania, Philadelphia, Pennsylvania, United States Synopsis. Intermolecular multiple-quantum coherences (iMQC) have been proposed as a novel contrast mechanism for clinical MRI. Its reliance on the distant dipolar field offers a user-tunable distance scale ove...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Hyperthermia
سال: 2010
ISSN: 0265-6736,1464-5157
DOI: 10.3109/02656736.2010.499527