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Meng QL, Yang R, Wu RZ, Xu L, Liu H, Yang G, Dong Y, Wang F, Chen Z, Jiang H. Evaluation of a respiratory motion-corrected image reconstruction algorithm in 2-[ 18F]FDG and [ 68Ga]Ga-DOTA-NOC PET/CT: impacts on image quality and tumor quantification. Quant Imaging Med Surg 2023; 13:370-383. [PMID: 36620155 PMCID: PMC9816722 DOI: 10.21037/qims-22-557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 10/31/2022] [Indexed: 11/23/2022]
Abstract
Background Respiratory motions may cause artifacts on positron emission tomography (PET) images that degrade image quality and quantification accuracy. This study aimed to evaluate the effect of a respiratory motion-corrected image reconstruction (MCIR) algorithm on image quality and tumor quantification compared with nongated/nonmotion-corrected reconstruction. Methods We used a phantom consisting of 5 motion spheres immersed in a chamber driven by a motor. The spheres and the background chamber were filled with 18F solution at a sphere-to-background ratio of 5:1. We enrolled 42 and 16 patients undergoing 2-deoxy-2-[18F]fluoro-D-glucose {2-[18F]FDG} and 68Ga-labeled [1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid]-1-Nal3-octreotide {[68Ga]Ga-DOTA-NOC} PET/computed tomography (CT) from whom 74 and 30 lesions were segmented, respectively. Three reconstructions were performed: data-driven gating-based motion correction (DDGMC), external vital signal module-based motion correction (VSMMC), and noncorrection reconstruction. The standardized uptake values (SUVs) and the volume of the spheres and the lesions were measured and compared among the 3 reconstruction groups. The image noise in the liver was measured, and the visual image quality of motion artifacts was scored by radiologists in the patient study. Results In the phantom study, the spheres' SUVs increased by 26-36%, and the volumes decreased by 35-38% in DDGMC and VSMMC compared with the noncorrection group. In the 2-[18F]FDG PET patient study, the lesions' SUVs had a median increase of 10.87-12.65% while the volumes had a median decrease of 14.88-15.18% in DDGMC and VSMMC compared with those of noncorrection. In the [68Ga]Ga-DOTA-NOC PET patient study, the lesions' SUVs increased by 14.23-15.45%, and the volumes decreased by 19.11-20.94% in DDGMC and VSMMC. The image noise in the liver was equal between the DDGMC, VSMMC, and noncorrection groups. Radiologists found improved image quality in more than 45% of the cases in DDGMC and VSMMC compared with the noncorrection group. There was no statistically significant difference in SUVs, volumes, or visual image quality scores between DDGMC and VSMMC. Conclusions MCIR improves tumor quantification accuracy and visual image quality by reducing respiratory motion artifacts without compromised image noise performance or elongated acquisition time in 2-[18F]FDG and [68Ga]Ga-DOTA-NOC PET/CT tumor imaging. The performance of DDG-driven MCIR is as good as that of the external device-driven solution.
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Affiliation(s)
- Qing-Le Meng
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Rui Yang
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Run-Ze Wu
- United Imaging Healthcare, Shanghai, China
| | - Lei Xu
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Hao Liu
- United Imaging Healthcare, Shanghai, China
| | - Gang Yang
- United Imaging Healthcare, Shanghai, China
| | - Yun Dong
- United Imaging Healthcare, Shanghai, China
| | - Feng Wang
- Department of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Zhengguo Chen
- National Health Commission Key Laboratory of Nuclear Technology Medical Transformation, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China
| | - Hongbing Jiang
- Department of Medical Equipment, Nanjing First Hospital, Nanjing Medical University, Nanjing, China;,Nanjing Emergency Medical Center, Nanjing, China
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Hapdey S, Dubray B, Chastan M, Thureau S, Gouel P, Edet-Sanson A, Becker S, Vera P, Bouyeure-Petit AC. Respiratory gated multistatic PET reconstructions to delineate radiotherapy target volume in patients with mobile lung tumors. THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF... 2022; 66:171-178. [PMID: 31922369 DOI: 10.23736/s1824-4785.19.03183-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND PET-CT with 18F-FDG or other radiopharmaceuticals is a recommended tool to help the delineation of lung cancers candidate to radiotherapy. The motion artifacts caused by respiratory movements are reduced by 4D acquisitions. We introduced an extended reconstruction algorithm (multiple reconstruct register and average [multi-RRA]) which requires much shorter acquisition times than standard 4D PET-CT. Our aim was to evaluate the interest on multi-RRA images as an alternative of 3D and 4D PET-CT for the delineation of lung lesion. METHODS PET acquisitions synchronized to the respiratory signal were obtained in 18 patients with mobile lung tumors. We compared the tumor volumes delineated on Multi-RRA images to 3D and 4D PET-CT, considering the 4D CT as a reference. The tumor volumes were delineated and compared with topologic similarity indexes (Dice, Jaccard and overlap). RESULTS Twenty tumors were delineated. The volumes delineated with multi-RRA and 4D PET were not significantly different (mean difference of 0.2±0.7 mL). Comparison by pairs (Tukey-Kramer test) showed that 3D-PET volumes were significantly smaller than 4D-PET and multi-RRA volumes (P<0.001). Topologic similarity indexes with 4D-PET were slightly statistically higher with multi-RRA than with 3D-PET (Dice and Jaccard) or 4D-CT (Dice, Jaccard and Overlap). CONCLUSIONS The tumor volumes delineated on multi-RRA are similar to the volumes obtained with 4D PET, with shorter acquisition time.
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Affiliation(s)
- Sebastien Hapdey
- Department of Nuclear Medicine, Henri Becquerel Cancer Center, Rouen, France -
- QuantIF-LITIS EA4108, University of Rouen, Rouen, France -
| | - Bernard Dubray
- QuantIF-LITIS EA4108, University of Rouen, Rouen, France
- Department of Radiotherapy, Henri Becquerel Cancer Center, Rouen, France
| | - Mathieu Chastan
- Department of Nuclear Medicine, Henri Becquerel Cancer Center, Rouen, France
| | - Sebastien Thureau
- QuantIF-LITIS EA4108, University of Rouen, Rouen, France
- Department of Radiotherapy, Henri Becquerel Cancer Center, Rouen, France
| | - Pierrick Gouel
- Department of Nuclear Medicine, Henri Becquerel Cancer Center, Rouen, France
| | - Agathe Edet-Sanson
- Department of Nuclear Medicine, Henri Becquerel Cancer Center, Rouen, France
- QuantIF-LITIS EA4108, University of Rouen, Rouen, France
| | - Stéphanie Becker
- Department of Nuclear Medicine, Henri Becquerel Cancer Center, Rouen, France
- QuantIF-LITIS EA4108, University of Rouen, Rouen, France
| | - Pierre Vera
- Department of Nuclear Medicine, Henri Becquerel Cancer Center, Rouen, France
- QuantIF-LITIS EA4108, University of Rouen, Rouen, France
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Cheung AHY, Wu VWC, Cheung ALY, Cai J. Respiratory 4D-Gating F-18 FDG PET/CT Scan for Liver Malignancies: Feasibility in Liver Cancer Patient and Tumor Quantitative Analysis. Front Oncol 2022; 12:789506. [PMID: 35223472 PMCID: PMC8864173 DOI: 10.3389/fonc.2022.789506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 01/12/2022] [Indexed: 11/18/2022] Open
Abstract
Purpose To evaluate the potential clinical role and effectiveness of respiratory 4D-gating F-18 FDG PET/CT scan for liver malignancies, relative to routine (3D) F-18 FDG PET/CT scan. Materials and Methods This study presented a prospective clinical study of 16 patients who received F-18 FDG PET/CT scan for known or suspected malignant liver lesions. Ethics approvals were obtained from the ethics committees of the Hong Kong Baptist Hospital and The Hong Kong Polytechnic University. Liver lesions were compared between the gated and ungated image sets, in terms of 1) volume measurement of PET image, 2) accuracy of maximum standardized uptake value (SUVmax), mean standardized uptake value (SUVmean), and 3) accuracy of total lesion glycoses (TLG). Statistical analysis was performed by using a two-tailed paired Student t-test and Pearson correlation test. Results The study population consisted of 16 patients (9 males and 7 females; mean age of 65) with a total number of 89 lesions. The SUVmax and SUVmean measurement of the gated PET images was more accurate than that of the ungated PET images, compared to the static reference images. An average of 21.48% (p < 0.001) reduction of the tumor volume was also observed. The SUVmax and SUVmean of the gated PET images were improved by 19.81% (p < 0.001) and 25.53% (p < 0.001), compared to the ungated PET images. Conclusions We have demonstrated the feasibility of implementing 4D PET/CT scan for liver malignancies in a prospective clinical study. The 4D PET/CT scan for liver malignancies could improve the quality of PET image by improving the SUV accuracy of the lesions and reducing image blurring. The improved accuracy in the classification and identification of liver tumors with 4D PET image would potentially lead to its increased utilization in target delineation of GTV, ITV, and PTV for liver radiotherapy treatment planning in the future.
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Affiliation(s)
- Anson H Y Cheung
- Department of Health Technology & Informatics, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China.,Radiotherapy and Oncology Department, Hong Kong Baptist Hospital, Hong Kong, Hong Kong SAR, China
| | - Vincent W C Wu
- Department of Health Technology & Informatics, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China
| | - Andy L Y Cheung
- Department of Health Technology & Informatics, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China.,Department of Clinical Oncology, Queen Mary Hospital, Hong Kong, Hong Kong SAR, China
| | - Jing Cai
- Department of Health Technology & Informatics, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China
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Kim DH, Yoo EH, Hong US, Kim JH, Ko YH, Moon SC, Cheon M, Yoo J. Image Registration of 18F-FDG PET/CT Using the MotionFree Algorithm and CT Protocols through Phantom Study and Clinical Evaluation. Healthcare (Basel) 2021; 9:669. [PMID: 34199705 PMCID: PMC8229608 DOI: 10.3390/healthcare9060669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/25/2021] [Accepted: 06/03/2021] [Indexed: 12/25/2022] Open
Abstract
We evaluated the benefits of the MotionFree algorithm through phantom and patient studies. The various sizes of phantom and vacuum vials were linked to RPM moving with or without MotionFree application. A total of 600 patients were divided into six groups by breathing protocols and CT scanning time. Breathing protocols were applied as follows: (a) patients who underwent scanning without any breathing instructions; (b) patients who were instructed to hold their breath after expiration during CT scan; and (c) patients who were instructed to breathe naturally. The length of PET/CT misregistration was measured and we defined the misregistration when it exceeded 10 mm. In the phantom tests, the images produced by the MotionFree algorithm were observed to have excellent agreement with static images. There were significant differences in PET/CT misregistration according to CT scanning time and each breathing protocol. When applying the type (c) protocol, decreasing the CT scanning time significantly reduced the frequency and length of misregistrations (p < 0.05). The MotionFree application is able to correct respiratory motion artifacts and to accurately quantify lesions. The shorter time of CT scan can reduce the frequency, and the natural breathing protocol also decreases the lengths of misregistrations.
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Affiliation(s)
- Deok-Hwan Kim
- Department of Nuclear Medicine, Veterans Health Service Medical Center, Seoul 05368, Korea; (D.-H.K.); (E.-H.Y.); (U.-S.H.); (J.-H.K.); (Y.-H.K.); (M.C.)
| | - Eun-Hye Yoo
- Department of Nuclear Medicine, Veterans Health Service Medical Center, Seoul 05368, Korea; (D.-H.K.); (E.-H.Y.); (U.-S.H.); (J.-H.K.); (Y.-H.K.); (M.C.)
| | - Ui-Seong Hong
- Department of Nuclear Medicine, Veterans Health Service Medical Center, Seoul 05368, Korea; (D.-H.K.); (E.-H.Y.); (U.-S.H.); (J.-H.K.); (Y.-H.K.); (M.C.)
| | - Jun-Hyeok Kim
- Department of Nuclear Medicine, Veterans Health Service Medical Center, Seoul 05368, Korea; (D.-H.K.); (E.-H.Y.); (U.-S.H.); (J.-H.K.); (Y.-H.K.); (M.C.)
| | - Young-Heon Ko
- Department of Nuclear Medicine, Veterans Health Service Medical Center, Seoul 05368, Korea; (D.-H.K.); (E.-H.Y.); (U.-S.H.); (J.-H.K.); (Y.-H.K.); (M.C.)
| | | | - Miju Cheon
- Department of Nuclear Medicine, Veterans Health Service Medical Center, Seoul 05368, Korea; (D.-H.K.); (E.-H.Y.); (U.-S.H.); (J.-H.K.); (Y.-H.K.); (M.C.)
| | - Jang Yoo
- Department of Nuclear Medicine, Veterans Health Service Medical Center, Seoul 05368, Korea; (D.-H.K.); (E.-H.Y.); (U.-S.H.); (J.-H.K.); (Y.-H.K.); (M.C.)
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Pösse S, Büther F, Mannweiler D, Hong I, Jones J, Schäfers M, Schäfers KP. Comparison of two elastic motion correction approaches for whole-body PET/CT: motion deblurring vs gate-to-gate motion correction. EJNMMI Phys 2020; 7:19. [PMID: 32232687 PMCID: PMC7105551 DOI: 10.1186/s40658-020-0285-4] [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: 11/05/2019] [Accepted: 03/03/2020] [Indexed: 12/27/2022] Open
Abstract
Background Respiratory motion in PET/CT leads to well-known image degrading effects commonly compensated using elastic motion correction approaches. Gate-to-gate motion correction techniques are promising tools for improving clinical PET data but suffer from relatively long reconstruction times. In this study, the performance of a fast elastic motion compensation approach based on motion deblurring (DEB-MC) was evaluated on patient and phantom data and compared to an EM-based fully 3D gate-to-gate motion correction method (G2G-MC) which was considered the gold standard. Methods Twenty-eight patients were included in this study with suspected or confirmed malignancies in the thorax or abdomen. All patients underwent whole-body [18F]FDG PET/CT examinations applying hardware-based respiratory gating. In addition, a dynamic anthropomorphic thorax phantom was studied with PET/CT simulating tumour motion under controlled but realistic conditions. PET signal recovery values were calculated from phantom scans by comparing lesion activities after motion correction to static ground truth data. Differences in standardized uptake values (SUV) and metabolic volume (MV) between both reconstruction methods as well as between motion-corrected (MC) and non motion-corrected (NOMC) results were statistically analyzed using a Wilcoxon signed-rank test. Results Phantom data analysis showed high lesion recovery values of 91% (2 cm motion) and 98% (1 cm) for G2G-MC and 83% (2 cm) and 90% (1 cm) for DEB-MC. The statistical analysis of patient data found significant differences between NOMC and MC reconstructions for SUV max, SUV mean, MV, and contrast-to-noise ratio (CNR) for both reconstruction algorithms. Furthermore, both methods showed similar increases of 11–12% in SUV max and SUV mean after MC. The statistical analysis of the MC/NOMC ratio found no significant differences between the methods. Conclusion Both motion correction techniques deliver comparable improvements of SUV max, SUV mean, and CNR after MC on clinical and phantom data. The fast elastic motion compensation technique DEB-MC may thereby be a valuable alternative to state-of-the art motion correction techniques.
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Affiliation(s)
- Stefanie Pösse
- European Institute for Molecular Imaging, University of Münster, Waldeyerstr. 15, Münster, 48149, Germany.
| | - Florian Büther
- European Institute for Molecular Imaging, University of Münster, Waldeyerstr. 15, Münster, 48149, Germany.,Department of Nuclear Medicine, University Hospital of Münster, Albert-Schweitzer-Campus 1, Münster, 48149, Germany
| | - Dirk Mannweiler
- European Institute for Molecular Imaging, University of Münster, Waldeyerstr. 15, Münster, 48149, Germany
| | - Inki Hong
- Molecular Imaging, Siemens Medical Solutions Inc., Knoxville, Knoxville, USA
| | - Judson Jones
- Molecular Imaging, Siemens Medical Solutions Inc., Knoxville, Knoxville, USA
| | - Michael Schäfers
- European Institute for Molecular Imaging, University of Münster, Waldeyerstr. 15, Münster, 48149, Germany.,Department of Nuclear Medicine, University Hospital of Münster, Albert-Schweitzer-Campus 1, Münster, 48149, Germany
| | - Klaus Peter Schäfers
- European Institute for Molecular Imaging, University of Münster, Waldeyerstr. 15, Münster, 48149, Germany
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Meier JG, Erasmus JJ, Gladish GW, Peterson CB, Diab RH, Mawlawi OR. Characterization of continuous bed motion effects on patient breathing and respiratory motion correction in PET/CT imaging. J Appl Clin Med Phys 2019; 21:158-165. [PMID: 31816183 PMCID: PMC6964757 DOI: 10.1002/acm2.12785] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/29/2019] [Accepted: 11/12/2019] [Indexed: 01/22/2023] Open
Abstract
Continuous bed motion (CBM) was recently introduced as an alternative to step‐and‐shoot (SS) mode for PET/CT data acquisition. In CBM, the patient is continuously advanced into the scanner at a preset speed, whereas in SS, the patient is imaged in overlapping bed positions. Previous investigations have shown that patients preferred CBM over SS for PET data acquisition. In this study, we investigated the effect of CBM versus SS on patient breathing and respiratory motion correction. One hundred patients referred for PET/CT were scanned using a Siemens mCT scanner. Patient respiratory waveforms were recorded using an Anzai system and analyzed using four methods: Methods 1 and 2 measured the coefficient of variation (COV) of the respiratory cycle duration (RCD) and amplitude (RCA). Method 3 measured the respiratory frequency signal prominence (RSP) and method 4 measured the width of the HDChest optimal gate (OG) window when using a 35% duty cycle. Waveform analysis was performed over the abdominothoracic region which exhibited the greatest respiratory motion and the results were compared between CBM and SS. Respiratory motion correction was assessed by comparing the ratios of SUVmax, SUVpeak, and CNR of focal FDG uptake, as well as Radiologists’ visual assessment of corresponding image quality of motion corrected and uncorrected images for both acquisition modes. The respiratory waveforms analysis showed that the RCD and RCA COV were 3.7% and 33.3% lower for CBM compared to SS, respectively, while the RSP and OG were 30.5% and 2.0% higher, respectively. Image analysis on the other hand showed that SUVmax, SUVpeak, and CNR were 8.5%, 4.5%, and 3.4% higher for SS compared to CBM, respectively, while the Radiologists’ visual comparison showed similar image quality between acquisition modes. However, none of the results showed statistically significant differences between SS and CBM, suggesting that motion correction is not impacted by acquisition mode.
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Affiliation(s)
- Joseph G Meier
- Department of Imaging Physics - Unit 1352, MD Anderson Cancer Center, Houston, TX, USA.,MD Anderson Cancer Center UTHealth Science Center at Houston Graduate School of Biomedical Sciences, Houston, TX, USA
| | - Jeremy J Erasmus
- Thoracic Imaging Department - Unit 1478, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Gregory W Gladish
- Thoracic Imaging Department - Unit 1478, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Christine B Peterson
- Biostatistics Department - Unit 1411, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Radwan H Diab
- Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Osama R Mawlawi
- Department of Imaging Physics - Unit 1352, MD Anderson Cancer Center, Houston, TX, USA.,MD Anderson Cancer Center UTHealth Science Center at Houston Graduate School of Biomedical Sciences, Houston, TX, USA
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« Définition des volumes cibles : quand et comment l’oncologue radiothérapeute peut-il utiliser la TEP ? ». Cancer Radiother 2019; 23:745-752. [DOI: 10.1016/j.canrad.2019.07.133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 07/28/2019] [Indexed: 12/12/2022]
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Frood R, McDermott G, Scarsbrook A. Respiratory-gated PET/CT for pulmonary lesion characterisation-promises and problems. Br J Radiol 2018; 91:20170640. [PMID: 29338327 DOI: 10.1259/bjr.20170640] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
2-deoxy-2-(18Fluorine)-fluoro-D-glucose (FDG) PET/CT is an integral part of lung carcinoma staging and frequently used in the assessment of solitary pulmonary nodules. However, a limitation of conventional three-dimensional PET/CT when imaging the thorax is its susceptibility to motion artefact, which blurs the signal from the lesion resulting in inaccurate representation of size and metabolic activity. Respiratory gated (four-dimensional) PET/CT aims to negate the effects of motion artefact and provide a more accurate interpretation of pulmonary nodules and lymphadenopathy. There have been recent advances in technology and a shift from traditional hardware to more streamlined software methods for respiratory gating which should allow more widespread use of respiratory-gating in the future. The purpose of this article is to review the evidence surrounding four-dimensional PET/CT in pulmonary lesion characterisation.
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Affiliation(s)
- Russell Frood
- 1 Department of Nuclear Medicine, Leeds Teaching Hospitals NHS Trust , Leeds , United Kingdom
| | - Garry McDermott
- 2 Department of Medical Physics & Engineering, Leeds Teaching Hospitals NHS Trust , Leeds , United Kingdom
| | - Andrew Scarsbrook
- 1 Department of Nuclear Medicine, Leeds Teaching Hospitals NHS Trust , Leeds , United Kingdom.,3 Leeds Institute of Cancer and Pathology, University of Leeds , Leeds , United Kingdom
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Wibmer AG, Hricak H, Ulaner GA, Weber W. Trends in oncologic hybrid imaging. Eur J Hybrid Imaging 2018; 2:1. [PMID: 29782605 PMCID: PMC5954767 DOI: 10.1186/s41824-017-0019-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 12/07/2017] [Indexed: 11/10/2022] Open
Abstract
Hybrid imaging plays a central role in the diagnosis and management of a wide range of malignancies at all stages. In this article, we review the most pertinent historical developments, emerging clinical applications of novel radiotracers and imaging technologies, and potential implications for training and practice. This includes an overview of novel tracers for prostate, breast, and neuroendocrine tumors, assessment of tumor heterogeneity, the concept of image-guided ‘biologically relevant dosing’, and theranostic applications. Recent technological advancements, including time-of-flight PET, PET/MRI, and ‘one-minute whole-body PET’, are also covered. Finally, we discuss how these rapidly evolving applications might affect current training curricula and how imaging-derived big data could be harnessed to the benefit of our patients.
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Affiliation(s)
- Andreas G Wibmer
- 1Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065 USA.,2Molecular Imaging and Therapy Service, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065 USA
| | - Hedvig Hricak
- 1Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065 USA
| | - Gary A Ulaner
- 1Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065 USA.,2Molecular Imaging and Therapy Service, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065 USA
| | - Wolfgang Weber
- 1Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065 USA.,2Molecular Imaging and Therapy Service, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065 USA
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