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Javor D, Bennani-Baiti BI, Clauser P, Kifjak D, Baltzer PAT. Automated analysis of the total choline resonance peak in breast proton magnetic resonance spectroscopy. NMR IN BIOMEDICINE 2024; 37:e5054. [PMID: 37794648 DOI: 10.1002/nbm.5054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 10/06/2023]
Abstract
The aim of the current study was to compare the performance of fully automated software with human expert interpretation of single-voxel proton magnetic resonance spectroscopy (1H-MRS) spectra in the assessment of breast lesions. Breast magnetic resonance imaging (MRI) (including contrast-enhanced T1-weighted, T2-weighted, and diffusion-weighted imaging) and 1H-MRS images of 74 consecutive patients were acquired on a 3-T positron emission tomography-MRI scanner then automatically imported into and analyzed by SpecTec-ULR 1.1 software (LifeTec Solutions GmbH). All ensuing 117 spectra were additionally independently analyzed and interpreted by two blinded radiologists. Histopathology of at least 24 months of imaging follow-up served as the reference standard. Nonparametric Spearman's correlation coefficients for all measured parameters (signal-to-noise ratio [SNR] and integral of total choline [tCho]), Passing and Bablok regression, and receiver operating characteristic analysis, were calculated to assess test diagnostic performance, as well as to compare automated with manual reading. Based on 117 spectra of 74 patients, the area under the curve for tCho SNR and integrals ranged from 0.768 to 0.814 and from 0.721 to 0.784 to distinguish benign from malignant tissue, respectively. Neither method displayed significant differences between measurements (automated vs. human expert readers, p > 0.05), in line with the results from the univariate Spearman's rank correlation coefficients, as well as the Passing and Bablok regression analysis. It was concluded that this pilot study demonstrates that 1H-MRS data from breast MRI can be automatically exported and interpreted by SpecTec-ULR 1.1 software. The diagnostic performance of this software was not inferior to human expert readers.
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Affiliation(s)
- Domagoj Javor
- Division of Cardiovascular and Interventional Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
- Department of Radiology, University Hospital Krems, Krems, Austria
- Karl Landsteiner University of Health Sciences, Krems, Austria
| | - Barbara I Bennani-Baiti
- Department of Radiology, University Hospital Krems, Krems, Austria
- Karl Landsteiner University of Health Sciences, Krems, Austria
| | - Paola Clauser
- Division of General and Pediatric Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Daria Kifjak
- Division of General and Pediatric Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
- Department of Radiology, UMass Memorial Medical Center and University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Pascal A T Baltzer
- Division of General and Pediatric Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
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Billy CA, Darmiati S, Prihartono J. Diagnostic accuracy of diffusion weighted imaging compared to magnetic resonance spectroscopy in differentiation of benign and malignant breast lesions: A systematic review and meta-analysis. Eur J Radiol 2023; 168:111124. [PMID: 37820523 DOI: 10.1016/j.ejrad.2023.111124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 07/12/2023] [Accepted: 09/28/2023] [Indexed: 10/13/2023]
Abstract
OBJECTIVE To compare the sensitivity and specificity of diffusion weighted imaging (DWI) and magnetic resonance spectroscopy (MRS) in the differentiation of benign and malignant breast lesions. METHODS Scopus, PubMed, and other registries were searched up to April 2023. We included diagnostic studies with DWI and MRS as index tests and histopathologic examination as the reference standard for differentiating benign and malignant breast lesions in adult females. We excluded studies involving healthy women, only breast cancer patients, and non-comparative diagnostic accuracy studies on either index test. The sensitivity and specificity of DWI and MRS were investigated and pooled using random-effect bivariate meta-analysis. Risk of bias was assessed using QUADAS-2. Evidence quality was summarized using GRADE. RESULTS Eight eligible studies involving 632 females and 687 breast lesions were identified. The pooled sensitivity and specificity of DWI were 92% (CI 85-96%) and 88% (CI 75-94%), respectively. The pooled sensitivity and specificity of MRS were 85% (CI 66-94%) and 85% (CI 77-91%), respectively. No significant difference was noted in the sensitivity (7%, CI -8-22%) and specificity (3%, CI -9-14%) between DWI and MRS. CONCLUSIONS In low to moderate quality evidence, DWI and MRS show comparable sensitivity and specificity in differentiating benign and malignant breast lesions.
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Affiliation(s)
- Christy Amanda Billy
- Department of Radiology, Dr. Cipto Mangunkusumo National General Hospital, Faculty of Medicine, University of Indonesia, Jakarta 10430, Indonesia.
| | - Sawitri Darmiati
- Department of Radiology, Dr. Cipto Mangunkusumo National General Hospital, Faculty of Medicine, University of Indonesia, Jakarta 10430, Indonesia
| | - Joedo Prihartono
- Department of Community Medicine, Faculty of Medicine, University of Indonesia, Jakarta 10310, Indonesia
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Joy A, Thomas MA. Enhanced spectral resolution for correlated spectroscopic imaging using inner-product and covariance transform: a pilot analysis of metabolites and lipids in breast cancer in vivo. Sci Rep 2023; 13:16809. [PMID: 37798319 PMCID: PMC10556085 DOI: 10.1038/s41598-023-43356-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 09/22/2023] [Indexed: 10/07/2023] Open
Abstract
Acquisition duration of correlated spectroscopy in vivo can be longer due to a large number of t1 increments along the indirect (F1) dimension. Limited number of t1 increments on the other hand leads to poor spectral resolution along F1. Covariance transformation (CT) instead of Fourier transform along t1 is an alternative way of increasing the resolution of the 2D COSY spectrum. Prospectively undersampled five-dimensional echo-planar correlated spectroscopic imaging (EP-COSI) data from ten malignant patients and ten healthy women were acquired and reconstructed using compressed sensing. The COSY spectrum at each voxel location was then generated using FFT, CT and a variant of CT called Inner Product (IP). Metabolite and lipid ratios were computed with respect to water from unsuppressed one-dimensional spectrum. The effects of t1-ridging artifacts commonly seen with FFT were not observed with CT/IP. Statistically significant differences were observed in the fat cross peaks measured with CT/IP/FFT. Spectral resolution was increased ~ 8.5 times (~ 19.53 Hz in FFT, ~ 2.32 Hz in CT/IP) without affecting the spectral width along F1 was possible with CT/IP. CT and IP enabled substantially increased F1 resolution effectively with significant gain in scan time and reliable measure of unsaturation index as a biomarker for malignant breast cancer.
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Affiliation(s)
- Ajin Joy
- Radiological Sciences, David Geffen School of Medicine at UCLA, 10945 Peter V Ueberroth Building, Suite#1417A, Los Angeles, CA, 90095, USA
- Physics and Biology in Medicine IDP, University of California Los Angeles, Los Angeles, CA, USA
| | - M Albert Thomas
- Radiological Sciences, David Geffen School of Medicine at UCLA, 10945 Peter V Ueberroth Building, Suite#1417A, Los Angeles, CA, 90095, USA.
- Physics and Biology in Medicine IDP, University of California Los Angeles, Los Angeles, CA, USA.
- BioEngineering, University of California Los Angeles, Los Angeles, CA, USA.
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Joy A, Lin M, Joines M, Saucedo A, Lee-Felker S, Baker J, Chien A, Emir U, Macey PM, Thomas MA. Ensemble Learning for Breast Cancer Lesion Classification: A Pilot Validation Using Correlated Spectroscopic Imaging and Diffusion-Weighted Imaging. Metabolites 2023; 13:835. [PMID: 37512542 PMCID: PMC10385820 DOI: 10.3390/metabo13070835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
The main objective of this work was to evaluate the application of individual and ensemble machine learning models to classify malignant and benign breast masses using features from two-dimensional (2D) correlated spectroscopy spectra extracted from five-dimensional echo-planar correlated spectroscopic imaging (5D EP-COSI) and diffusion-weighted imaging (DWI). Twenty-four different metabolite and lipid ratios with respect to diagonal fat peaks (1.4 ppm, 5.4 ppm) from 2D spectra, and water and fat peaks (4.7 ppm, 1.4 ppm) from one-dimensional non-water-suppressed (NWS) spectra were used as the features. Additionally, water fraction, fat fraction and water-to-fat ratios from NWS spectra and apparent diffusion coefficients (ADC) from DWI were included. The nine most important features were identified using recursive feature elimination, sequential forward selection and correlation analysis. XGBoost (AUC: 93.0%, Accuracy: 85.7%, F1-score: 88.9%, Precision: 88.2%, Sensitivity: 90.4%, Specificity: 84.6%) and GradientBoost (AUC: 94.3%, Accuracy: 89.3%, F1-score: 90.7%, Precision: 87.9%, Sensitivity: 94.2%, Specificity: 83.4%) were the best-performing models. Conventional biomarkers like choline, myo-Inositol, and glycine were statistically significant predictors. Key features contributing to the classification were ADC, 2D diagonal peaks at 0.9 ppm, 2.1 ppm, 3.5 ppm, and 5.4 ppm, cross peaks between 1.4 and 0.9 ppm, 4.3 and 4.1 ppm, 2.3 and 1.6 ppm, and the triglyceryl-fat cross peak. The results highlight the contribution of the 2D spectral peaks to the model, and they demonstrate the potential of 5D EP-COSI for early breast cancer detection.
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Affiliation(s)
- Ajin Joy
- Radiological Sciences, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.J.); (M.L.); (M.J.); (A.S.); (S.L.-F.); (A.C.)
| | - Marlene Lin
- Radiological Sciences, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.J.); (M.L.); (M.J.); (A.S.); (S.L.-F.); (A.C.)
| | - Melissa Joines
- Radiological Sciences, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.J.); (M.L.); (M.J.); (A.S.); (S.L.-F.); (A.C.)
| | - Andres Saucedo
- Radiological Sciences, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.J.); (M.L.); (M.J.); (A.S.); (S.L.-F.); (A.C.)
- Physics and Biology in Medicine-Inter-Departmental Graduate Program, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Stephanie Lee-Felker
- Radiological Sciences, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.J.); (M.L.); (M.J.); (A.S.); (S.L.-F.); (A.C.)
| | - Jennifer Baker
- Surgery, University of California Los Angeles, Los Angeles, CA 90095, USA;
| | - Aichi Chien
- Radiological Sciences, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.J.); (M.L.); (M.J.); (A.S.); (S.L.-F.); (A.C.)
| | - Uzay Emir
- School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN 47907, USA;
| | - Paul M. Macey
- School of Nursing, University of California Los Angeles, Los Angeles, CA 90095, USA;
| | - M. Albert Thomas
- Radiological Sciences, University of California Los Angeles, Los Angeles, CA 90095, USA; (A.J.); (M.L.); (M.J.); (A.S.); (S.L.-F.); (A.C.)
- Physics and Biology in Medicine-Inter-Departmental Graduate Program, University of California Los Angeles, Los Angeles, CA 90095, USA
- BioEngineering, University of California Los Angeles, Los Angeles, CA 90095, USA
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Schmidt AB, Adelabu I, Nelson C, Nantogma S, Kiselev VG, Zaitsev M, Abdurraheem A, de Maissin H, Rosen MS, Lehmkuhl S, Appelt S, Theis T, Chekmenev EY. 13C Radiofrequency Amplification by Stimulated Emission of Radiation Threshold Sensing of Chemical Reactions. J Am Chem Soc 2023; 145:11121-11129. [PMID: 37172079 PMCID: PMC10257364 DOI: 10.1021/jacs.3c00776] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Conventional nuclear magnetic resonance (NMR) enables detection of chemicals and their transformations by exciting nuclear spin ensembles with a radio-frequency pulse followed by detection of the precessing spins at their characteristic frequencies. The detected frequencies report on chemical reactions in real time and the signal amplitudes scale with concentrations of products and reactants. Here, we employ Radiofrequency Amplification by Stimulated Emission of Radiation (RASER), a quantum phenomenon producing coherent emission of 13C signals, to detect chemical transformations. The 13C signals are emitted by the negatively hyperpolarized biomolecules without external radio frequency pulses and without any background signal from other, nonhyperpolarized spins in the ensemble. Here, we studied the hydrolysis of hyperpolarized ethyl-[1-13C]acetate to hyperpolarized [1-13C]acetate, which was analyzed as a model system by conventional NMR and 13C RASER. The chemical transformation of 13C RASER-active species leads to complete and abrupt disappearance of reactant signals and delayed, abrupt reappearance of a frequency-shifted RASER signal without destroying 13C polarization. The experimentally observed "quantum" RASER threshold is supported by simulations.
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Affiliation(s)
- Andreas B. Schmidt
- Department of Chemistry, Integrative Bio-sciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, Michigan 48202, United States
- Division of Medical Physics, Department of Radiology, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Killianstr. 5a, Freiburg 79106, Germany
- German Cancer Consortium (DKTK), partner site Freiburg and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, Heidelberg 69120, Germany
| | - Isaiah Adelabu
- Department of Chemistry, Integrative Bio-sciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, Michigan 48202, United States
| | - Christopher Nelson
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Shiraz Nantogma
- Department of Chemistry, Integrative Bio-sciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, Michigan 48202, United States
| | - Valerij G. Kiselev
- Division of Medical Physics, Department of Radiology, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Killianstr. 5a, Freiburg 79106, Germany
| | - Maxim Zaitsev
- Division of Medical Physics, Department of Radiology, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Killianstr. 5a, Freiburg 79106, Germany
| | - Abubakar Abdurraheem
- Department of Chemistry, Integrative Bio-sciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, Michigan 48202, United States
| | - Henri de Maissin
- Division of Medical Physics, Department of Radiology, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Killianstr. 5a, Freiburg 79106, Germany
- German Cancer Consortium (DKTK), partner site Freiburg and German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, Heidelberg 69120, Germany
| | - Matthew S. Rosen
- Massachusetts General Hospital, A. A. Martinos Center for Biomedical Imaging, Boston, MA 02129, United States
- Department of Physics, Harvard University; Cambridge, MA 02138, United States
| | - Sören Lehmkuhl
- Institute of Microstructure Technology, Karlsruhe Institute of Technology; 76344 Eggenstein-Leopoldshafen, Karlsruhe, Germany
| | - Stephan Appelt
- Institute of Technical and Macromolecular Chemistry, RWTH Aachen University; 52056 Aachen, Germany
- Central Institute for Engineering, Electronics and Analytics – Electronic Systems (ZEA-2), Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
| | - Thomas Theis
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27606, United States
- Joint UNC & NC State Department of Biomedical Engineering, North Carolina State University, Raleigh, North Carolina 27606, United States
| | - Eduard Y. Chekmenev
- Department of Chemistry, Integrative Bio-sciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, Michigan 48202, United States
- Russian Academy of Sciences, 119991 Moscow, Russia
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Adelabu I, Chowdhury MRH, Nantogma S, Oladun C, Ahmed F, Stilgenbauer L, Sadagurski M, Theis T, Goodson BM, Chekmenev EY. Efficient SABRE-SHEATH Hyperpolarization of Potent Branched-Chain-Amino-Acid Metabolic Probe [1- 13C]ketoisocaproate. Metabolites 2023; 13:200. [PMID: 36837820 PMCID: PMC9963635 DOI: 10.3390/metabo13020200] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/22/2023] [Accepted: 01/23/2023] [Indexed: 02/03/2023] Open
Abstract
Efficient 13C hyperpolarization of ketoisocaproate is demonstrated in natural isotopic abundance and [1-13C]enriched forms via SABRE-SHEATH (Signal Amplification By Reversible Exchange in SHield Enables Alignment Transfer to Heteronuclei). Parahydrogen, as the source of nuclear spin order, and ketoisocaproate undergo simultaneous chemical exchange with an Ir-IMes-based hexacoordinate complex in CD3OD. SABRE-SHEATH enables spontaneous polarization transfer from parahydrogen-derived hydrides to the 13C nucleus of transiently bound ketoisocaproate. 13C polarization values of up to 18% are achieved at the 1-13C site in 1 min in the liquid state at 30 mM substrate concentration. The efficient polarization build-up becomes possible due to favorable relaxation dynamics. Specifically, the exponential build-up time constant (14.3 ± 0.6 s) is substantially lower than the corresponding polarization decay time constant (22.8 ± 1.2 s) at the optimum polarization transfer field (0.4 microtesla) and temperature (10 °C). The experiments with natural abundance ketoisocaproate revealed polarization level on the 13C-2 site of less than 1%-i.e., one order of magnitude lower than that of the 1-13C site-which is only partially due to more-efficient relaxation dynamics in sub-microtesla fields. We rationalize the overall much lower 13C-2 polarization efficiency in part by less favorable catalyst-binding dynamics of the C-2 site. Pilot SABRE experiments at pH 4.0 (acidified sample) versus pH 6.1 (unaltered sodium [1-13C]ketoisocaproate) reveal substantial modulation of SABRE-SHEATH processes by pH, warranting future systematic pH titration studies of ketoisocaproate, as well as other structurally similar ketocarboxylate motifs including pyruvate and alpha-ketoglutarate, with the overarching goal of maximizing 13C polarization levels in these potent molecular probes. Finally, we also report on the pilot post-mortem use of HP [1-13C]ketoisocaproate in a euthanized mouse, demonstrating that SABRE-hyperpolarized 13C contrast agents hold promise for future metabolic studies.
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Affiliation(s)
- Isaiah Adelabu
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, MI 48202, USA
| | - Md Raduanul H. Chowdhury
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, MI 48202, USA
| | - Shiraz Nantogma
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, MI 48202, USA
| | - Clementinah Oladun
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, MI 48202, USA
| | - Firoz Ahmed
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, MI 48202, USA
| | - Lukas Stilgenbauer
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, MI 48202, USA
| | - Marianna Sadagurski
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, MI 48202, USA
| | - Thomas Theis
- Department of Chemistry, Department of Physics, Joint UNC-CH & NC State Department of Biomedical Engineering, North Carolina State University, Raleigh, NC 27695, USA
| | - Boyd M. Goodson
- School of Chemical & Biomolecular Sciences and Materials Technology Center, Southern Illinois University, Carbondale, IL 62901, USA
| | - Eduard Y. Chekmenev
- Department of Chemistry, Integrative Biosciences (Ibio), Karmanos Cancer Institute (KCI), Wayne State University, Detroit, MI 48202, USA
- Russian Academy of Sciences, Leninskiy Prospekt 14, 119991 Moscow, Russia
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The additive role of 1H-magnetic resonance spectroscopic imaging to ensure pathological complete response after neoadjuvant chemotherapy in breast cancer patients. Pol J Radiol 2020; 84:e570-e580. [PMID: 32082456 PMCID: PMC7016493 DOI: 10.5114/pjr.2019.92282] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 11/12/2019] [Indexed: 12/27/2022] Open
Abstract
Purpose To assess the role of 1H-magnetic resonance spectroscopy (1H-MRS) in the confirmation of pathological complete response after neoadjuvant chemotherapy in breast cancer. Material and methods Forty-seven cases (53.72 ± 8.53 years) were evaluated using magnetic resonance imaging (MRI) and 1H-MRS with choline (Cho) signal-to-noise ratio (SNR) measured followed by histopathology and ROC analyses. Results Twelve patients had complete response, and 35 patients had residual disease. Mean age was 53.72 ± 8.53 years. The mean tumour size before neoadjuvant chemotherapy (NAC) was 4.21 ± 0.99 cm and after NAC was 0.9 ± 0.44 cm.Positive total choline signal (tCho) was detected in all cases. The mean Cho SNR before NAC was 9.53 ± 1.7 and after NAC was 2.53 ± 1.3. The Cho SNR cut-off point differentiating between pathologic complete response (pCR) and the non pCR was 1.95. Dynamic MRI showed 83.3% sensitivity, 65.7% specificity, 45.5% positive predictive value, 92.0% negative predictive value, and 70.2% diagnostic accuracy. Combined evaluation done by using the dynamic MRI and 1H-MRS showed 91.5% diagnostic accuracy with 75.0% sensitivity, 97.1% specificity, 75% positive predictive value, and 91.9% negative predictive value. ROC curves of Cho SNR showed statistically significant differences between non pCR and pCR with AUC was 0.955, 82.9% sensitivity, 91.7% specificity, 96.7% positive predictive value, 64.7% negative predictive value, and 85.11% diagnostic accuracy. Conclusions 1H-MRS improves the diagnostic accuracy in the prediction of the pCR after NAC.
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Fardanesh R, Marino MA, Avendano D, Leithner D, Pinker K, Thakur SB. Proton MR spectroscopy in the breast: Technical innovations and clinical applications. J Magn Reson Imaging 2019; 50:1033-1046. [PMID: 30848037 DOI: 10.1002/jmri.26700] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 02/20/2019] [Indexed: 01/27/2023] Open
Abstract
Proton magnetic resonance spectroscopy (MRS) is a promising noninvasive diagnostic technique for investigation of breast cancer metabolism. Spectroscopic imaging data may be obtained following contrast-enhanced MRI by applying the point-resolved spectroscopy sequence (PRESS) or the stimulated echo acquisition mode (STEAM) sequence from the MR voxel encompassing the breast lesion. Total choline signal (tCho) measured in vivo using either a qualitative or quantitative approach has been used as a diagnostic test in the workup of malignant breast lesions. In addition to tCho metabolites, other relevant metabolites, including multiple lipids, can be detected and monitored. MRS has been heavily investigated as an adjunct to morphologic and dynamic MRI to improve diagnostic accuracy in breast cancer, obviating unnecessary benign biopsies. Besides its use in the staging of breast cancer, other promising applications have been recently investigated, including the assessment of treatment response and therapy monitoring. This review provides guidance on spectroscopic acquisition and quantification methods and highlights current and evolving clinical applications of proton MRS. Level of Evidence 5 Technical Efficacy: Stage 5 J. Magn. Reson. Imaging 2019.
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Affiliation(s)
- Reza Fardanesh
- Department of Radiology, Breast Imaging Service, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Maria Adele Marino
- Department of Radiology, Breast Imaging Service, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,Department of Biomedical Sciences and Morphologic and Functional Imaging, Policlinico Universitario G. Martino, University of Messina, Italy
| | - Daly Avendano
- Department of Radiology, Breast Imaging Service, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Doris Leithner
- Department of Radiology, Breast Imaging Service, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Katja Pinker
- Department of Radiology, Breast Imaging Service, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,Department of Biomedical Imaging and Image-guided Therapy, Division of Molecular and Gender Imaging, Medical University of Vienna, Vienna, Austria
| | - Sunitha B Thakur
- Department of Radiology, Breast Imaging Service, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
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9
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Huang Y, Lin Y, Hu W, Ma C, Lin W, Wang Z, Liang J, Ye W, Zhao J, Wu R. Diffusion Kurtosis at 3.0T as an in vivo Imaging Marker for Breast Cancer Characterization: Correlation With Prognostic Factors. J Magn Reson Imaging 2019; 49:845-856. [PMID: 30260589 DOI: 10.1002/jmri.26249] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 06/19/2018] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Diffusion-kurtosis imaging (DKI) has preliminarily shown promise as a relatively new MRI technique to provide useful information regarding breast lesions, but the diagnostic performance of DKI has not been fully evaluated. PURPOSE To compare the diagnostic accuracy of DKI, diffusion-weighted imaging (DWI), dynamic contrast-enhanced (DCE)-MRI) and proton MR spectroscopy (1 H-MRS) in differentiating malignant from benign breast lesions independently or jointly, and explore the correlation between DKI-derived parameters and prognostic factors. STUDY TYPE Prospective. SUBJECTS Seventy-one patients with breast lesions (50 malignant, 26 benign). SEQUENCE DKI, DWI, DCE-MRI, and 1 H-MRS were performed at 3.0T. ASSESSMENT Mean kurtosis (MK), mean diffusivity (MD), apparent diffusion coefficient (ADC), BI-RADS category, and choline peaks were analyzed by two experienced radiologists. STATISTICAL TESTS Student's t-test was used for continuous variables; receiver operating characteristic (ROC) analysis for assessing the diagnostic accuracy of imaging parameters; Spearman or Pearson correlations for assessing the associations between imaging parameters and prognostic factors. RESULTS MK exhibited higher area under the curves (AUCs) for differentiating malignant from benign lesions than did MD, ADC, DCE, and tCho (0.979 vs. 0.928, 0.911, 0.777, and 0.833, respectively, P < 0.05). MK showed a positive association with Ki-67 expression (r = 0.508) and histologic grades (r = 0.551), whereas MD and ADC were negatively correlated with Ki-67 expression (r = -0.416 and r = -0.458) and histologic grades (r = -0.411 and r = -0.319). Moreover, MK showed relatively higher AUCs compared with MD and ADC in detecting breast cancers with lymph nodal involvement, histologic grades, and Ki-67 expression. DATA CONCLUSION MK has higher diagnostic accuracy compared with ADC, DCE, and tCho regarding detection of breast cancer. Moreover, DKI shows promise as a quantitative imaging technique for characterizing breast lesions, highlighting the potential utility of MK as a promising imaging marker for predicting tumor aggressiveness. LEVEL OF EVIDENCE 2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:845-856.
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Affiliation(s)
- Yao Huang
- Radiology Department, Second Affiliated Hospital, Shantou University Medical College, Shantou, P.R. China
| | - Yan Lin
- Radiology Department, Second Affiliated Hospital, Shantou University Medical College, Shantou, P.R. China
| | - Wei Hu
- Radiology Department, Second Affiliated Hospital, Shantou University Medical College, Shantou, P.R. China
| | - Changchun Ma
- Radiation Oncology, Affiliated Tumor Hospital, Shantou University Medical College, Shantou, P.R. China
| | - Weixun Lin
- Surgery Department, Second Affiliated Hospital, Shantou University Medical College, Shantou, P.R. China
| | - Zhening Wang
- Radiology Department, Second Affiliated Hospital, Shantou University Medical College, Shantou, P.R. China
| | - Jiahao Liang
- Radiology Department, Second Affiliated Hospital, Shantou University Medical College, Shantou, P.R. China
| | - Wei Ye
- Radiology Department, Second Affiliated Hospital, Shantou University Medical College, Shantou, P.R. China
| | - Jiayun Zhao
- Radiology Department, Second Affiliated Hospital, Shantou University Medical College, Shantou, P.R. China
| | - Renhua Wu
- Radiology Department, Second Affiliated Hospital, Shantou University Medical College, Shantou, P.R. China
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Di Leo G, Ioan I, Luciani ML, Midulla C, Podo F, Sardanelli F, Pediconi F. Changes in total choline concentration in the breast of healthy fertile young women in relation to menstrual cycle or use of oral contraceptives: a 3-T 1H-MRS study. Eur Radiol Exp 2018; 2:43. [PMID: 30560497 PMCID: PMC6297122 DOI: 10.1186/s41747-018-0075-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/26/2018] [Indexed: 02/03/2023] Open
Abstract
Background To evaluate changes in total choline (tCho) absolute concentration ([tCho]) in the breast of healthy fertile women in relation to menstrual cycle (MC) or use of oral contraceptives (OC). Methods After institutional review board approval, we prospectively evaluated 40 healthy fertile volunteers: 20 with physiological MC, aged 28 ± 3 years (mean ± standard deviation; nOC group); 20 using OC, aged 26 ± 3 years (OC group). Hormonal assays and water-suppressed single-voxel 3-T proton magnetic resonance spectroscopy (1H-MRS) were performed on MC days 7, 14, and 21 in the nOC group and only on MC day 14 in the OC group. [tCho] was measured versus an external phantom. Mann-Whitney U test and Spearman coefficient were used; data are given as median and interquartile interval. Results All spectra had good quality. In the nOC group, [tCho] (mM) did not change significantly during MC: 0.8 (0.3–2.4) on day 7, 0.9 (0.4–1.2) on day 14, and 0.4 (0.2–0.8) on day 21 (p = 0.963). In the OC group, [tCho] was 0.7 (0.2–1.7) mM. The between-groups difference was not significant on all days (p ≥ 0.411). All hormones except prolactin changed during MC (p ≤ 0.024). In the OC group, [tCho] showed a borderline correlation with estradiol (r = 0.458, p = 0.056), but no correlation with other hormones (p ≥ 0.128). In the nOC group, [tCho] negatively correlated with prolactin (r = -0.587, p = 0.006) on day 7; positive correlation was found with estradiol on day 14 (r = 0.679, p = 0.001). Conclusions A tCho peak can be detected in the normal mammary gland using 3-T 1H-MRS. The [tCho] in healthy volunteers was 0.4–0.9 mM, constant over the MC and independent of OC use.
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Affiliation(s)
- Giovanni Di Leo
- Radiology Unit, IRCCS Policlinico San Donato, San Donato Milanese, Italy.
| | - Ileana Ioan
- Postgraduate School in Radiodiagnostics, Università degli Studi di Milano, Milan, Italy
| | - Maria Laura Luciani
- Department of Radiological, Oncological and Pathological Sciences, Sapienza University of Rome, Rome, Italy
| | - Cecilia Midulla
- Department of Radiological, Oncological and Pathological Sciences, Sapienza University of Rome, Rome, Italy
| | - Franca Podo
- Department of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Rome, Italy
| | - Francesco Sardanelli
- Radiology Unit, IRCCS Policlinico San Donato, San Donato Milanese, Italy.,Department of Biomedical Sciences for Health, Università degli Studi di Milano, San Donato Milanese, Italy
| | - Federica Pediconi
- Department of Radiological, Oncological and Pathological Sciences, Sapienza University of Rome, Rome, Italy
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Mohamed RE, Zytoon HA, Amin MA. Diagnostic interplay of proton magnetic resonance spectroscopy and diffusion weighted images with apparent diffusion coefficient values in suspicious breast lesions. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2018. [DOI: 10.1016/j.ejrnm.2018.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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12
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Bales L, Kovtunov KV, Barskiy DA, Shchepin RV, Coffey AM, Kovtunova LM, Bukhtiyarov AV, Feldman MA, Bukhtiyarov VI, Chekmenev EY, Koptyug IV, Goodson BM. Aqueous, Heterogeneous Parahydrogen-Induced 15N Polarization. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2017; 121:15304-15309. [PMID: 29238438 PMCID: PMC5723423 DOI: 10.1021/acs.jpcc.7b05912] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 06/20/2017] [Indexed: 05/20/2023]
Abstract
The successful transfer of parahydrogen-induced polarization to 15N spins using heterogeneous catalysts in aqueous solutions was demonstrated. Hydrogenation of a synthesized unsaturated 15N-labeled precursor (neurine) with parahydrogen (p-H2) over Rh/TiO2 heterogeneous catalysts yielded a hyperpolarized structural analog of choline. As a result, 15N polarization enhancements of over two orders of magnitude were achieved for the 15N-ethyl trimethyl ammonium ion product in deuterated water at elevated temperatures. Enhanced 15N NMR spectra were successfully acquired at 9.4 T and 0.05 T. Importantly, long hyperpolarization lifetimes were observed at 9.4 T, with a 15N T1 of ~6 min for the product molecules, and the T1 of the deuterated form exceeded 8 min. Taken together, these results show that this approach for generating hyperpolarized species with extended lifetimes in aqueous, biologically compatible solutions is promising for various biomedical applications.
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Affiliation(s)
- Liana
B. Bales
- Department
of Chemistry and Biochemistry, and Materials Technology Center, Southern Illinois University, Carbondale, Illinois 62901, United States
| | - Kirill V. Kovtunov
- International
Tomography Center SB RAS, Novosibirsk 630090, Russia
- Novosibirsk
State University, Novosibirsk 630090, Russia
- E-mail: (K.V.K.)
| | - Danila A. Barskiy
- Department of Biomedical Engineering and Physics,
Vanderbilt-Ingram
Cancer Center (VICC), and Vanderbilt Institute of Imaging Science (VUIIS),
Department of Radiology, Vanderbilt University
Medical Center, Nashville, Tennessee 37232, United States
| | - Roman V. Shchepin
- Department of Biomedical Engineering and Physics,
Vanderbilt-Ingram
Cancer Center (VICC), and Vanderbilt Institute of Imaging Science (VUIIS),
Department of Radiology, Vanderbilt University
Medical Center, Nashville, Tennessee 37232, United States
| | - Aaron M. Coffey
- Department of Biomedical Engineering and Physics,
Vanderbilt-Ingram
Cancer Center (VICC), and Vanderbilt Institute of Imaging Science (VUIIS),
Department of Radiology, Vanderbilt University
Medical Center, Nashville, Tennessee 37232, United States
| | - Larisa M. Kovtunova
- Novosibirsk
State University, Novosibirsk 630090, Russia
- Boreskov
Institute of Catalysis SB RAS, Novosibirsk 630090, Russia
| | | | - Matthew A. Feldman
- Department of Biomedical Engineering and Physics,
Vanderbilt-Ingram
Cancer Center (VICC), and Vanderbilt Institute of Imaging Science (VUIIS),
Department of Radiology, Vanderbilt University
Medical Center, Nashville, Tennessee 37232, United States
| | - Valerii I. Bukhtiyarov
- Novosibirsk
State University, Novosibirsk 630090, Russia
- Boreskov
Institute of Catalysis SB RAS, Novosibirsk 630090, Russia
| | - Eduard Y. Chekmenev
- Department of Biomedical Engineering and Physics,
Vanderbilt-Ingram
Cancer Center (VICC), and Vanderbilt Institute of Imaging Science (VUIIS),
Department of Radiology, Vanderbilt University
Medical Center, Nashville, Tennessee 37232, United States
- Russian
Academy of Sciences, Moscow 119991, Russia
- E-mail: (E.Y.C.)
| | - Igor V. Koptyug
- International
Tomography Center SB RAS, Novosibirsk 630090, Russia
- Novosibirsk
State University, Novosibirsk 630090, Russia
| | - Boyd M. Goodson
- Department
of Chemistry and Biochemistry, and Materials Technology Center, Southern Illinois University, Carbondale, Illinois 62901, United States
- E-mail: (B.M.G.)
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García-Figueiras R, Baleato-González S, Padhani AR, Oleaga L, Vilanova JC, Luna A, Cobas Gómez JC. Proton magnetic resonance spectroscopy in oncology: the fingerprints of cancer? Diagn Interv Radiol 2017; 22:75-89. [PMID: 26712681 DOI: 10.5152/dir.2015.15009] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Abnormal metabolism is a key tumor hallmark. Proton magnetic resonance spectroscopy (1H-MRS) allows measurement of metabolite concentration that can be utilized to characterize tumor metabolic changes. 1H-MRS measurements of specific metabolites have been implemented in the clinic. This article performs a systematic review of image acquisition and interpretation of 1H-MRS for cancer evaluation, evaluates its strengths and limitations, and correlates metabolite peaks at 1H-MRS with diagnostic and prognostic parameters of cancer in different tumor types.
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Affiliation(s)
- Roberto García-Figueiras
- Department of Radiology, Hospital Clínico Universitario de Santiago de Compostela, Santiago de Compostela, Spain.
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14
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Montemezzi S, Cavedon C, Camera L, Meliadò G, Caumo F, Baglio I, Sardanelli F. 1H-MR spectroscopy of suspicious breast mass lesions at 3T: a clinical experience. Radiol Med 2016; 122:161-170. [DOI: 10.1007/s11547-016-0713-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 11/27/2016] [Indexed: 12/24/2022]
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15
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High-field MR spectroscopy in the multiparametric MRI evaluation of breast lesions. Phys Med 2016; 32:1707-1711. [DOI: 10.1016/j.ejmp.2016.09.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 09/09/2016] [Accepted: 09/10/2016] [Indexed: 12/11/2022] Open
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16
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Ramazan A, Demircioglu O, Ugurlu U, Kaya H, Aribal E. Efficacy of single voxel 1H MR spectroscopic imaging at 3T for the differentiation of benign and malign breast lesions. Clin Imaging 2016; 40:831-6. [PMID: 27179154 DOI: 10.1016/j.clinimag.2016.03.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 02/18/2016] [Accepted: 03/10/2016] [Indexed: 11/29/2022]
Abstract
PURPOSE The aim of our study was to evaluate the effect of 1H Magnetic Resonance Spectroscopy (MRS) in differentiating breast lesions. MATERIALS AND METHODS Single voxel 1H Magnetic Resonance Spectroscopy (1H-MRS) was performed with 3T magnet in 45 women. The choline cut off point was set semi-quantitavely. Sensitivity, specificity and accuracy of MRS were calculated. RESULTS Twenty-four of 25 (96%) malignant and 9 of 26 (35%) benign lesions had choline peak. With the use cutoff value of 19,5 MRS provided a 96% sensitivity, 65% specificity and 80% accuracy. CONCLUSION MRS has a high diagnostic accuracy in differentiating breast lesions.
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Affiliation(s)
- Abdullah Ramazan
- Marmara University Pendik Education and Research Hospital, Department of Radiology, Istanbul.
| | - Ozlem Demircioglu
- Marmara University Pendik Education and Research Hospital, Department of Radiology, Istanbul.
| | - Umit Ugurlu
- Marmara University Pendik Education and Research Hospital, Department of General Surgery, Istanbul.
| | - Handan Kaya
- Marmara University Pendik Education and Research Hospital, Department of Pathology, Istanbul.
| | - Erkin Aribal
- Marmara University Pendik Education and Research Hospital, Department of Radiology, Istanbul.
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17
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Magnetic Resonance Imaging: Advanced Applications in Breast Cancer. CURRENT RADIOLOGY REPORTS 2016. [DOI: 10.1007/s40134-016-0142-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Magnetic resonance imaging of tumor with a self-traceable polymer conjugated with an antibody fragment. Bioorg Med Chem Lett 2015; 25:2675-8. [PMID: 25958246 DOI: 10.1016/j.bmcl.2015.04.072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 04/20/2015] [Accepted: 04/22/2015] [Indexed: 11/21/2022]
Abstract
A (13)C-enriched phosphorylcholine polymer ((13)C-PMPC) as a self-traceable MR (magnetic resonance) tag was conjugated with a fragment (scFv) of Herceptin, a clinical antibody against antigen Her2. When injected in model mice bearing Her2(+) (gastric) and Her2(-) (pancreatic) tumors, the antibody-tag conjugate (13)C-PMPC-scFv selectively accumulated in the Her2(+) tumor with a rapid build-up/decay (accumulation/clearance) profile and, with the use of the (1)H-(13)C double-resonance (heteronuclear correlation) technique, the Her2(+) gastric tumor was clearly MR imaged.
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19
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Breast cancer: a new imaging approach as an addition to existing guidelines. Eur J Nucl Med Mol Imaging 2015; 42:813-7. [PMID: 25761830 DOI: 10.1007/s00259-015-3032-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 02/05/2015] [Indexed: 12/28/2022]
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20
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Coffey AM, Kovtunov KV, Barskiy DA, Koptyug IV, Shchepin RV, Waddell KW, He P, Groome KA, Best QA, Shi F, Goodson BM, Chekmenev EY. High-resolution low-field molecular magnetic resonance imaging of hyperpolarized liquids. Anal Chem 2014; 86:9042-9. [PMID: 25162371 PMCID: PMC4165454 DOI: 10.1021/ac501638p] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We demonstrate the feasibility of microscale molecular imaging using hyperpolarized proton and carbon-13 MRI contrast media and low-field (47.5 mT) preclinical scale (38 mm i.d.) 2D magnetic resonance imaging (MRI). Hyperpolarized proton images with 94 × 94 μm(2) spatial resolution and hyperpolarized carbon-13 images with 250 × 250 μm(2) in-plane spatial resolution were recorded in 4-8 s (largely limited by the electronics response), surpassing the in-plane spatial resolution (i.e., pixel size) achievable with micro-positron emission tomography (PET). These hyperpolarized proton and (13)C images were recorded using large imaging matrices of up to 256 × 256 pixels and relatively large fields of view of up to 6.4 × 6.4 cm(2). (13)C images were recorded using hyperpolarized 1-(13)C-succinate-d2 (30 mM in water, %P(13C) = 25.8 ± 5.1% (when produced) and %P(13C) = 14.2 ± 0.7% (when imaged), T1 = 74 ± 3 s), and proton images were recorded using (1)H hyperpolarized pyridine (100 mM in methanol-d4, %P(H) = 0.1 ± 0.02% (when imaged), T1 = 11 ± 0.1 s). Both contrast agents were hyperpolarized using parahydrogen (>90% para-fraction) in an automated 5.75 mT parahydrogen induced polarization (PHIP) hyperpolarizer. A magnetized path was demonstrated for successful transportation of a (13)C hyperpolarized contrast agent (1-(13)C-succinate-d2, sensitive to fast depolarization when at the Earth's magnetic field) from the PHIP polarizer to the 47.5 mT low-field MRI. While future polarizing and low-field MRI hardware and imaging sequence developments can further improve the low-field detection sensitivity, the current results demonstrate that microscale molecular imaging in vivo is already feasible at low (<50 mT) fields and potentially at low (~1 mM) metabolite concentrations.
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Affiliation(s)
- Aaron M Coffey
- Vanderbilt University Institute of Imaging Science (VUIIS) and Department of Radiology, Vanderbilt University , Nashville, Tennessee 37232, United States
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22
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Suppiah S, Rahmat K, Mohd-Shah M, Azlan C, Tan L, Aziz Y, Vijayananthan A, Wui A, Yip C. Improved diagnostic accuracy in differentiating malignant and benign lesions using single-voxel proton MRS of the breast at 3 T MRI. Clin Radiol 2013; 68:e502-10. [DOI: 10.1016/j.crad.2013.04.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 03/19/2013] [Accepted: 04/05/2013] [Indexed: 11/25/2022]
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Abstract
In vivo magnetic resonance spectroscopy (MRS) of the breast can be used to measure the level of choline-containing compounds, which is a biomarker of malignancy. In the diagnostic setting, MRS can provide high specificity for distinguishing benign from malignant lesions. MRS also can be used as an early response indicator in patients undergoing neoadjuvant chemotherapy. This article describes the acquisition and analysis methods used for measuring total choline levels in the breast using MRS, reviews the findings from clinical studies of diagnosis and treatment response, and discusses problems, limitations, and future developments for this promising clinical technology.
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Affiliation(s)
- Patrick J Bolan
- Center for Magnetic Resonance Research, Department of Radiology, University of Minnesota, Minneapolis, MN 55419, USA.
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24
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A historical overview of magnetic resonance imaging, focusing on technological innovations. Invest Radiol 2013; 47:725-41. [PMID: 23070095 DOI: 10.1097/rli.0b013e318272d29f] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Magnetic resonance imaging (MRI) has now been used clinically for more than 30 years. Today, MRI serves as the primary diagnostic modality for many clinical problems. In this article, historical developments in the field of MRI will be discussed with a focus on technological innovations. Topics include the initial discoveries in nuclear magnetic resonance that allowed for the advent of MRI as well as the development of whole-body, high field strength, and open MRI systems. Dedicated imaging coils, basic pulse sequences, contrast-enhanced, and functional imaging techniques will also be discussed in a historical context. This article describes important technological innovations in the field of MRI, together with their clinical applicability today, providing critical insights into future developments.
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Choi JS, Baek HM, Kim S, Kim MJ, Youk JH, Moon HJ, Kim EK, Han KH, Kim DH, Kim SI, Koo JS. HR-MAS MR spectroscopy of breast cancer tissue obtained with core needle biopsy: correlation with prognostic factors. PLoS One 2012; 7:e51712. [PMID: 23272149 PMCID: PMC3522710 DOI: 10.1371/journal.pone.0051712] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 11/05/2012] [Indexed: 01/09/2023] Open
Abstract
The purpose of this study was to examine the correlation between high-resolution magic angle spinning (HR-MAS) magnetic resonance (MR) spectroscopy using core needle biopsy (CNB) specimens and histologic prognostic factors currently used in breast cancer patients. After institutional review board approval and informed consent were obtained for this study, CNB specimens were collected from 36 malignant lesions in 34 patients. Concentrations and metabolic ratios of various choline metabolites were estimated by HR-MAS MR spectroscopy using CNB specimens. HR-MAS spectroscopic values were compared according to histopathologic variables [tumor size, lymph node metastasis, histologic grade, status of estrogens receptor (ER), progesterone receptor (PR), HER2 (a receptor for human epidermal growth factor), and Ki-67, and triple negativity]. Multivariate analysis was performed with Orthogonal Projections to Latent Structure-Discriminant Analysis (OPLS-DA). HR-MAS MR spectroscopy quantified and discriminated choline metabolites in all CNB specimens of the 36 breast cancers. Several metabolite markers [free choline (Cho), phosphocholine (PC), creatine (Cr), taurine, myo-inositol, scyllo-inositol, total choline (tCho), glycine, Cho/Cr, tCho/Cr, PC/Cr] on HR-MAS MR spectroscopy were found to correlate with histologic prognostic factors [ER, PR, HER2, histologic grade, triple negativity, Ki-67, poor prognosis]. OPLS-DA multivariate models were generally able to discriminate the status of histologic prognostic factors (ER, PR, HER2, Ki-67) and prognosis groups. Our study suggests that HR-MAS MR spectroscopy using CNB specimens can predict tumor aggressiveness prior to surgery in breast cancer patients. In addition, it may be helpful in the detection of reliable markers for breast cancer characterization.
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Affiliation(s)
- Ji Soo Choi
- Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
- Department of Radiology, National Cancer Center, Ilsandong-gu, Goyang-si Gyeonggi-do, Korea
| | - Hyeon-Man Baek
- Division of Magnetic Resonance, Korea Basic Science Institute, Yuseong-gu, Daejeon, Korea
| | - Suhkmann Kim
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Geumjeong-gu, Busan, Korea
| | - Min Jung Kim
- Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
- * E-mail:
| | - Ji Hyun Youk
- Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
| | - Hee Jung Moon
- Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
| | - Eun-Kyung Kim
- Department of Radiology, Research Institute of Radiological Science, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
| | - Kyung Hwa Han
- Department of Research Affair, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
| | - Dong-hyun Kim
- College of Electrical & Electronic Engineering, Yonsei University, Seodaemun-gu, Seoul, Korea
| | - Seung Il Kim
- Department of Surgery, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
| | - Ja Seung Koo
- Department of Pathology, Yonsei University College of Medicine, Seodaemun-gu, Seoul, Korea
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Abramson RG, Arlinghaus LR, Weis JA, Li X, Dula AN, Chekmenev EY, Smith SA, Miga MI, Abramson VG, Yankeelov TE. Current and emerging quantitative magnetic resonance imaging methods for assessing and predicting the response of breast cancer to neoadjuvant therapy. BREAST CANCER-TARGETS AND THERAPY 2012; 2012:139-154. [PMID: 23154619 DOI: 10.2147/bctt.s35882] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Reliable early assessment of breast cancer response to neoadjuvant therapy (NAT) would provide considerable benefit to patient care and ongoing research efforts, and demand for accurate and noninvasive early-response biomarkers is likely to increase. Response assessment techniques derived from quantitative magnetic resonance imaging (MRI) hold great potential for integration into treatment algorithms and clinical trials. Quantitative MRI techniques already available for assessing breast cancer response to neoadjuvant therapy include lesion size measurement, dynamic contrast-enhanced MRI, diffusion-weighted MRI, and proton magnetic resonance spectroscopy. Emerging yet promising techniques include magnetization transfer MRI, chemical exchange saturation transfer MRI, magnetic resonance elastography, and hyperpolarized MR. Translating and incorporating these techniques into the clinical setting will require close attention to statistical validation methods, standardization and reproducibility of technique, and scanning protocol design.
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Affiliation(s)
- Richard G Abramson
- Institute of Imaging Science, Vanderbilt University, Nashville, TN, USA ; Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN, USA ; Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
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In vivo proton magnetic resonance spectroscopy of breast cancer: a review of the literature. Breast Cancer Res 2012; 14:207. [PMID: 22515594 PMCID: PMC3446370 DOI: 10.1186/bcr3132] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
An emerging clinical modality called proton magnetic resonance spectroscopy ((1)H-MRS) enables the non-invasive in vivo assessment of tissue metabolism and is demonstrating applications in improving the specificity of MR breast lesion diagnosis and monitoring tumour responsiveness to neoadjuvant chemotherapies. Variations in the concentration of choline-based cellular metabolites, detectable with (1)H-MRS, have shown an association with malignant transformation of tissue in in vivo and in vitro studies. (1)H-MRS exists as an adjunct to the current routine clinical breast MR examination. This review serves as an introduction to the field of breast (1)H-MRS, discusses modern high-field strength and quantitative approaches and technical considerations, and reviews the literature with respect to the application of (1)H-MRS for breast cancer.
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