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Detection Normal variants and pitfalls of 18_F _FDG PET/CT imaging in pediatic oncology.
Although pediatric cancer is relatively rare compared with adult cancer, it is the second most common cause of death, after injury in children and adolescents. lymphoma, Leukemia, and brain cancer, account for more than half of pediatric cancers, followed by neuroblastoma, soft-tissue sarcomas, Wilms tumors, and bone tumors .
18Fluorine-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) plays an important role, staging, restaging, response to treatment in childhood malignancies. PET-only examinations have been replaced by hybrid systems in the recent decades, where PET and CT are used together in oncology. In this imaging system, PET and CT are used together for functional data and morphological information, respectively. (2) Although 18F-FDG PET/CT is now well established as an accurate method for the staging and restaging of various cancers, it is also well recognized that many false-positive results can occur .
The normal distribution of FDG uptake in children differs from adults. Also, even though FDG is used widely in oncology, it is not tumor specific. Uptake of FDG may be seen in numerous benign conditions, including inflammation, infection, and trauma. Proper interpretation of pediatric FDG PET/CT studies requires knowledge of the normal distribution of FDG uptake in children, and an insight into the physiologic variants, benign lesions, and PET/CT related artifacts.
By understanding the potential causes of misinterpretation, we can increase the accuracy of interpretation, decrease the number of unnecessary follow-up studies and improve treatment outcome.
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| PET/CT | Diagnostic Test | is an imaging test that can help reveal the metabolic or biochemical function of your tissues and organs. The PET scan uses a radioactive drug called a tracer to show both typical and atypical metabolic activity. A PET scan can often detect the atypical metabolism of the tracer in diseases before the disease shows up on other imaging tests, such as computerized tomography (CT) and magnetic resonance imaging (MRI). |
| Measure | Description | Time Frame |
|---|---|---|
| Detection normal variants and pitfalls of 18F-FDG PET/CT Imaging in Pediatric oncology that interfere in PET/CT study results and interpretation. | Detection normal variants and pitfalls of 18F-FDG PET/CT Imaging in Pediatric oncology that interfere in PET/CT study results and interpretation by follow up with PET/CT or other imagining or clinically | Baseline |
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Inclusion Criteria:
All patients > or = 18 years.
Exclusion Criteria:
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Pediatric patients that will underwent PET/CT scan
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Amira Atef Mohamed, Resident doctor | Contact | +20 1017064445 | ameraatef781@gmail.com | |
| Waleed Ahmed Diaab, Ass.prof | Contact | +201004242213 | Waleed.diab@aun.edu.eg |
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| Background | https://doi.org/10.3389/fnume.2022.825891 | ||
| 17515398 | Background | Smith CS, Schoder H, Yeung HW. Thymic extension in the superior mediastinum in patients with thymic hyperplasia: potential cause of false-positive findings on 18F-FDG PET/CT. AJR Am J Roentgenol. 2007 Jun;188(6):1716-21. doi: 10.2214/AJR.06.0552. | |
| 33586403 |
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| ID | Term |
|---|---|
| D000072078 | Positron Emission Tomography Computed Tomography |
| ID | Term |
|---|---|
| D049268 | Positron-Emission Tomography |
| D014055 | Tomography, Emission-Computed |
| D007090 | Image Interpretation, Computer-Assisted |
| D003952 | Diagnostic Imaging |
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| Background |
| Bicakci N, Elli M. 18Fluorine-fluorodeoxyglucose PET/CT Imaging in Childhood Malignancies. Mol Imaging Radionucl Ther. 2021 Feb 9;30(1):18-27. doi: 10.4274/mirt.galenos.2020.64436. |
| 33334912 | Background | Vali R, Alessio A, Balza R, Borgwardt L, Bar-Sever Z, Czachowski M, Jehanno N, Kurch L, Pandit-Taskar N, Parisi M, Piccardo A, Seghers V, Shulkin BL, Zucchetta P, Lim R. SNMMI Procedure Standard/EANM Practice Guideline on Pediatric 18F-FDG PET/CT for Oncology 1.0. J Nucl Med. 2021 Jan;62(1):99-110. doi: 10.2967/jnumed.120.254110. |
| D019937 | Diagnostic Techniques and Procedures |
| D003933 | Diagnosis |
| D014057 | Tomography, X-Ray Computed |
| D064847 | Multimodal Imaging |
| D011856 | Radiographic Image Enhancement |
| D007089 | Image Enhancement |
| D010781 | Photography |
| D011859 | Radiography |
| D014056 | Tomography, X-Ray |
| D011877 | Radionuclide Imaging |
| D014054 | Tomography |
| D003947 | Diagnostic Techniques, Radioisotope |