Feasibility and Incremental Benefit of Puffed-Cheek 18F-FDG PET/CT on Oral Cancer Patients

Chang, Chih Yung; Yang, Bohan; Lin, Kon Ping; Liu, Ru‐Shi; Wang, Shyh Jen; Wj, Shih

doi:10.1097/rlu.0b013e31826390cf

Cited by 11 publications

(5 citation statements)

References 24 publications

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“…The slice thickness and axial field of view were 0.327 and 15.7 cm, respectively. 11 The images were reconstructed iteratively using the ordered-subset reconstruction algorithm, and attenuation corrections of PET were calculated from CT transmission maps generated from CT data set. 12 …”

Section: Methodsmentioning

confidence: 99%

“…This might reflect the rare incidence of aortic graft infection not only in our study but also in general population, and could bias the result. Second, the effects of antibiotics on the 18 F-FDG uptake were not involved, 11 although most of the patients received empiric antibiotic treatment at 18 F-FDG PET/CT examination. Bias would be inevitable too due to the small sample size and single-institution referral nature of this study.…”

Section: Study Limitations and Conclusionmentioning

confidence: 99%

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Added Value of Dual-Time-Point 18F-FDG PET/CT With Delayed Imaging for Detecting Aortic Graft Infection

Chang

Shih

et al. 2015

Medicine

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Abstract18F-FDG PET/CT is a promising tool in detecting aortic graft infection. Present study investigated the value of dual-time-point 18F-FDG PET/CT imaging (DTPI) with delayed imaging in assessing aortic graft infection.Twenty-nine patients with suspected aortic graft infection were prospectively enrolled in this DTPI study. Two nuclear medicine physicians read all the images and achieved consensus about the measurement of maximal standardized uptake value (SUVmax) and grading of image quality. The percentages of SUVmax change between initial and delayed images were recorded as retention index (RI); sensitivity, specificity, and accuracy were calculated based on reference standard.All the 5 infected aortic grafts had positive RIs, which were generally higher than that of noninfected grafts. Those noninfected grafts had variable RIs. Seven patients had improved image quality in delayed imaging. DTPI with delayed image detected all the infected grafts with improved specificity (88%) and accuracy (90%), providing conspicuous delineation of the infected graft extent.In conclusion, noninfected aortic grafts had more variable RIs than infected ones. DTPI might be useful for detecting aortic graft infection, improving image quality, and enhancing delineation of the infected aortic grafts.

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Section: Methodsmentioning

confidence: 99%

Section: Study Limitations and Conclusionmentioning

confidence: 99%

Added Value of Dual-Time-Point 18F-FDG PET/CT With Delayed Imaging for Detecting Aortic Graft Infection

Chang

Shih

et al. 2015

Medicine

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“…This technique will lead to the better localisation and demonstration of the extent of a tumour of the oral cavity. Chang and colleagues [33] demonstrated that the puffed cheek maneuvere on FDG PET/CT is more useful for the evaluation of the oral cancers and their extent as seen in the FDG PET/CT. This study has shown that the localised or extended oral cancers of puffed cheek FDG PET/CT and conventional FDG PET/ CT was 95.2% and 54.5%, respectively.…”

Section: Special Imaging Techniquesmentioning

confidence: 99%

PET-CT Imaging and Applications

Shaikh¹

2022

Computed-Tomography (CT) Scan

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PET-CT is an important imaging modality which is well established in the recent years. The role of the molecular imaging in the evaluation of the various pathologies has been increased due to the various technological advances, radiotracer advances and also in the research. This chapter is emphasised to give the broader and better overview of the PET-CT imaging which will be used for various applications in broader fields. These advanced imaging techniques will form the basis of the different clinical applications of the PET-CT. Thus, there will have more precise applications in various pathologies which will increase the sensitivity and specificity of the different disease processes. The understanding of the basic techniques is important before being used in various pathologies. The techniques can be routine or special like the puff cheek technique for the better evaluation of the oral malignancies. The newer concept of the dual time point imaging which is being used to differentiate between the various infective and inflammatory lesions from the malignant pathologies. This chapter emphasises the use of the various techniques for various focussed clinical applications.

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“…The primary aim of the preliminary imaging of a patient with a HNSCC is to decide the clinical stage with the prominent attainable accuracy. In this concern, head-totoe 18F-FDG PET/CT (Fluorodeoxyglucose) permits the TNM stage to be discovered noninvasively in an individual process (Chang et al, 2013;Cistaro et al, 2011) Certain article have publicised excessive sensitivity and speci icity of 18F-FDG PET in association to conservative radiological standards along with the histological gold standard. (Differding et al, 2015) PET/CT PET/CT is higher to CT and MRI in inding of carcinoma of cervical lymph node metastasis, distant metastasis, remaining tumour, persevering sickness and second essential tumors causing in change in the therapy Table 2 However, the examination of FDG PET/CT investigation in the head and neck is fascinating as of the typically compound life systems, physiologic varieties, and strange design of FDG take-up following radiation treatment and medical procedure (Beltagi et al, 2019) Since FDG isn't a tumour-exact pointer, it can assemble in a range of benign progressions with benign tumours, in lammatory, post traumatic disorders.…”

Section: Positron Emission Tomography(pet)mentioning

confidence: 99%

“…On hurling the cheeks, the oral vestibule is squeezed with air, by making a negative contrast partitions of buccal and labial mucosa from the gingival mucosa, permitting both mucosal surfaces to be evaluated independently (Cistaro et al, 2011;Chang et al, 2013)…”

Section: Puffed-cheek Techniquementioning

confidence: 99%

Distinct Imaging Modalities in Head and Neck Cancer: Benefits and Drawbacks

Merin¹,

Roshni²

2020

ijrps

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This review mainly focuses on the distinct imaging techniques in for head and neck cancer (HNC), its altered techniques used in diagnosis and its applications. It also depicts the upcoming imaging methods present in the field of HNC causing areas. It explains precise determination regarding the degree and extends of neoplasm. We mainly look on to the MRI(Magnetic resonance imaging), PET(Positron emission tomography), CT (computed tomography)imaging biomarkers for the management of HNC. It plays an important role in the therapy selection strategies and also enhances the therapeutic ratio in the management of HNC. The role of imaging techniques become increasingly more crucial in the management process in locally progressed head and neck squamous cell carcinoma(HNSCC). In this structure, PET allows non-invasive assessment of a range of tumour biomarkers such as metabolism, hypoxia and proliferation. MRI techniques such as can characterize different tissues by probing into their microstructure, providing a novel methodology in oncological imaging. CT, MRI, and PET/CT are widely used to determine the presence and extent of the tumours before and after treatment. This review depicts a synopsis of the most recent imaging strategies and imaging recommendations for every one of the different strides along the clinical way of patients with head and neck malignant growth.

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Feasibility and Incremental Benefit of Puffed-Cheek 18F-FDG PET/CT on Oral Cancer Patients

Abstract: Puffed-cheek PET/CT is feasible in the current clinical setting and can improve the delineation of oral cancer extent and location, with a potential benefit of reducing dental artifacts.

Cited by 11 publications

References 24 publications

Added Value of Dual-Time-Point 18F-FDG PET/CT With Delayed Imaging for Detecting Aortic Graft Infection

Added Value of Dual-Time-Point 18F-FDG PET/CT With Delayed Imaging for Detecting Aortic Graft Infection

PET-CT Imaging and Applications

Distinct Imaging Modalities in Head and Neck Cancer: Benefits and Drawbacks

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