Quantified pH imaging with hyperpolarized 13C‐bicarbonate

DJ Scholz, MA Janich, U Köllisch… - Magnetic …, 2015 - Wiley Online Library
Purpose Because pH plays a crucial role in several diseases, it is desirable to measure pH
in vivo noninvasively and in a spatially localized manner. Spatial maps of pH were …

Imaging pH with hyperpolarized 13C

FA Gallagher, MI Kettunen, KM Brindle - NMR in Biomedicine, 2011 - Wiley Online Library
pH is a fundamental physiological parameter that is tightly controlled by endogenous
buffers. The acid–base balance is altered in many disease states, such as inflammation …

Parameterization of hyperpolarized 13C-bicarbonate-dissolution dynamic nuclear polarization

DJ Scholz, AM Otto, J Hintermair, F Schilling… - … Resonance Materials in …, 2015 - Springer
Objective 13 C metabolic MRI using hyperpolarized 13 C-bicarbonate enables preclinical
detection of pH. To improve signal-to-noise ratio, experimental procedures were refined, and …

Using bidirectional chemical exchange for improved hyperpolarized [13C]bicarbonate pH imaging

DE Korenchan, JW Gordon… - Magnetic resonance …, 2019 - Wiley Online Library
Purpose Rapid chemical exchange can affect SNR and pH measurement accuracy for
hyperpolarized pH imaging with [13C] bicarbonate. The purpose of this work was to …

Efficient production of hyperpolarized bicarbonate by chemical reaction on a DNP precursor to measure p H

RK Ghosh, SJ Kadlecek, M Pourfathi… - Magnetic resonance in …, 2015 - Wiley Online Library
Purpose To produce hyperpolarized bicarbonate indirectly via chemical reaction from a
hyperpolarized precursor and utilize it for the simultaneous regional measurement of …

In vivo pH mapping of injured lungs using hyperpolarized [1‐13C]pyruvate

N Drachman, S Kadlecek, M Pourfathi… - Magnetic resonance …, 2017 - Wiley Online Library
Purpose To optimize the production of hyperpolarized 13C‐bicarbonate from the
decarboxylation of hyperpolarized [1‐13C] pyruvate and use it to image pH in the lungs and …

A regional bolus tracking and real‐time B1 calibration method for hyperpolarized 13C MRI

S Tang, E Milshteyn, G Reed, J Gordon… - Magnetic resonance …, 2019 - Wiley Online Library
Purpose Acquisition timing and B1 calibration are two key factors that affect the quality and
accuracy of hyperpolarized 13C MRI. The goal of this project was to develop a new …

Esterase-Catalyzed Production of Hyperpolarized 13C-Enriched Carbon Dioxide in Tissues for Measuring pH

N Maptue, W Jiang, C Harrison, AM Funk… - ACS …, 2018 - ACS Publications
13C Magnetic resonance imaging of hyperpolarized (HP) 13C-enriched bicarbonate
(H13CO3–) and carbon dioxide (13CO2) is a novel and sensitive technique for tissue pH …

Magnetic resonance imaging of pH in vivo using hyperpolarized 13C-labelled bicarbonate

FA Gallagher, MI Kettunen, SE Day, DE Hu… - Nature, 2008 - nature.com
As alterations in tissue pH underlie many pathological processes, the capability to image
tissue pH in the clinic could offer new ways of detecting disease and response to treatment …

Integrated Bloch‐Siegert B1 mapping and multislice imaging of hyperpolarized 13C pyruvate and bicarbonate in the heart

AZ Lau, AP Chen… - Magnetic resonance in …, 2012 - Wiley Online Library
Hyperpolarization of 13C labeled substrates via dynamic nuclear polarization has been
used as a method to noninvasively study real‐time metabolic processes occurring in vivo. In …