Evaluation of the dependence of the exposure dose on the attenuation correction in brain PET/CT scans using 18F-FDG

2014 ◽  
Vol 64 (1) ◽  
pp. 114-121
Author(s):  
Eun-Jin Choi ◽  
Moon-Taeg Jeong ◽  
Seong-Joo Jang ◽  
Nam-Gil Choi ◽  
Jae-Bok Han ◽  
...  
Keyword(s):  
Attenuation Correction ◽  
Exposure Dose ◽  
Ct Scans ◽  
Brain Pet ◽  
Pet Ct ◽  
18F Fdg

Comparison of liver SUV using unenhanced CT versus contrast-enhanced CT for attenuation correction in 18F-FDG PET/CT

2014 ◽  
Vol 35 (5) ◽  
pp. 472-477 ◽  
Author(s):  
Edwin E.G.W. ter Voert ◽  
Hanneke W.M. van Laarhoven ◽  
Peter J.M. Kok ◽  
Wim J.G. Oyen ◽  
Eric P. Visser ◽  
...  
Keyword(s):  
Attenuation Correction ◽  
Fdg Pet ◽  
Unenhanced Ct ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Pet Ct ◽  
Enhanced Ct ◽  
18F Fdg ◽  
Fdg Pet Ct

scholarly journals Comparison of standardized uptake values measured on 18F-NaF PET/CT scans using three different tube current intensities

2015 ◽  
Vol 48 (1) ◽  
pp. 17-20 ◽  
Author(s):  
Agnes Araujo Valadares ◽  
Paulo Schiavom Duarte ◽  
Eduardo Bechtloff Woellner ◽  
George Barberio Coura-Filho ◽  
Marcelo Tatit Sapienza ◽  
...  
Keyword(s):  
Attenuation Correction ◽  
Lumbar Vertebra ◽  
Ct Scans ◽  
Femoral Diaphysis ◽  
Standardized Uptake Values ◽  
Pet Ct ◽  
Tube Current ◽  
The Mean ◽  
Humeral Diaphysis ◽  
Ct Studies

Objective: To analyze standardized uptake values (SUVs) using three different tube current intensities for attenuation correction on 18FNaF PET/CT scans. Materials and Methods: A total of 254 18F-NaF PET/CT studies were analyzed using 10, 20 and 30 mAs. The SUVs were calculated in volumes of interest (VOIs) drawn on three skeletal regions, namely, right proximal humeral diaphysis (RH), right proximal femoral diaphysis (RF), and first lumbar vertebra (LV1) in a total of 712 VOIs. The analyses covered 675 regions classified as normal (236 RH, 232 RF, and 207 LV1). Results: Mean SUV for each skeletal region was 3.8, 5.4 and 14.4 for RH, RF, and LV1, respectively. As the studies were grouped according to mAs value, the mean SUV values were 3.8, 3.9 and 3.7 for 10, 20 and 30 mAs, respectively, in the RH region; 5.4, 5.5 and 5.4 for 10, 20 and 30 mAs, respectively, in the RF region; 13.8, 14.9 and 14.5 for 10, 20 and 30 mAs, respectively, in the LV1 region. Conclusion: The three tube current values yielded similar results for SUV calculation.

scholarly journals Volume of interest delineation techniques for 18F-FDG PET-CT scans during neoadjuvant extremity soft tissue sarcoma treatment in adults: a feasibility study

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Marc G. Stevenson ◽  
Lukas B. Been ◽  
Harald J. Hoekstra ◽  
Albert J. H. Suurmeijer ◽  
Ronald Boellaard ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Soft Tissue Sarcoma ◽  
Fdg Pet ◽  
Ct Scans ◽  
Volume Of Interest ◽  
Extremity Soft Tissue Sarcoma ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct ◽  
Sarcoma Treatment

scholarly journals Hounsfield unit value has null effect on thyroid nodules at 18F-FDG PET/CT scans

2018 ◽  
Vol 62 (4) ◽  
pp. 460-465
Author(s):  
Filiz Eksi Haydardedeoglu ◽  
Gulay Simsek Bagir ◽  
Nese Torun ◽  
Emrah Kocer ◽  
Mehmet Reyhan ◽  
...  
Keyword(s):  
Fdg Pet ◽  
Thyroid Nodules ◽  
Hounsfield Unit ◽  
Ct Scans ◽  
Null Effect ◽  
Unit Value ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct

scholarly journals Value of fourth and subsequent post-therapy follow-up 18F-FDG PET/CT scans in patients with breast cancer

2016 ◽  
Vol 37 (6) ◽  
pp. 602-608
Author(s):  
Mehdi Taghipour ◽  
Sara Sheikhbahaei ◽  
Tyler J. Trahan ◽  
Rathan M. Subramaniam
Keyword(s):  
Breast Cancer ◽  
Fdg Pet ◽  
Ct Scans ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct ◽  
Post Therapy

Brown fat in breast cancer patients: analysis of serial 18F-FDG PET/CT scans

2006 ◽  
Vol 33 (7) ◽  
pp. 785-791 ◽  
Author(s):  
C. Rousseau ◽  
E. Bourbouloux ◽  
L. Campion ◽  
N. Fleury ◽  
B. Bridji ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Patients ◽  
Fdg Pet ◽  
Brown Fat ◽  
Ct Scans ◽  
Breast Cancer Patients ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct

scholarly journals The quantitative assessment of interstitial lung disease with positron emission tomography scanning in systemic sclerosis patients

Rheumatology ◽  
2019 ◽  
Vol 59 (6) ◽  
pp. 1407-1415 ◽  
Author(s):  
Daphne M Peelen ◽  
Ben G J C Zwezerijnen ◽  
Esther J Nossent ◽  
Lilian J Meijboom ◽  
Otto S Hoekstra ◽  
...  
Keyword(s):  
High Resolution ◽  
Interstitial Lung Disease ◽  
Lung Disease ◽  
Fdg Pet ◽  
Quantitative Assessment ◽  
Ct Scanning ◽  
Ct Scans ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct

Abstract Objectives The reversibility of interstitial lung disease (ILD) in SSc is difficult to assess by current diagnostic modalities and there is clinical need for imaging techniques that allow for treatment stratification and monitoring. 18F-Fluorodeoxyglucose (FDG) PET/CT scanning may be of interest for this purpose by detection of metabolic activity in lung tissue. This study aimed to investigate the potential role of 18F-FDG PET/CT scanning for the quantitative assessment of SSc-related active ILD. Methods 18F-FDG PET/CT scans and high resolution CT scans of eight SSc patients, including five with ILD, were analysed. For comparison, reference groups were included: eight SLE patients and four primary Sjögren’s syndrome (pSS) patients, all without ILD. A total of 22 regions of interest were drawn in each patient at apical, medial and dorsobasal lung levels. 18F-FDG uptake was measured as mean standardized uptake value (SUVmean) in each region of interest. Subsequently, basal/apical (B/A) and medial/apical (M/A) ratios were calculated at patient level (B/A-p and M/A-p) and at tissue level (B/A-t and M/A-t). Results SUVmean values in dorsobasal ROIs and B/A-p ratios were increased in SSc with ILD compared with SSc without ILD (P = 0.04 and P = 0.07, respectively), SLE (P = 0.003 and P = 0.002, respectively) and pSS (P = 0.03 and P = 0.02, respectively). Increased uptake in the dorsobasal lungs and increased B/A-t ratios corresponded to both ground glass and reticulation on high resolution CT. Conclusion Semi-quantitative assessment of 18F-FDG PET/CT is able to distinguish ILD from non-affected lung tissue in SSc, suggesting that it may be used as a new biomarker for SSc-ILD disease activity.

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