基于探针

The studywas performed on a time-of-flight PET/CTScanner

( Polestar m 660; Sino Union Healthcare Inc. ) on 2 consecutive days.

Patients received an intravenous injection of 68Ga-DOT A TATE(155±52MBq) on the first day and 68Ga-DOT A-JR 11(148±52MBq) onthe second day.A low-do seCTs can(120keV； 100mAs； 1.3pitch；2.5-mm slice thickness； 0.5-s rotation time； estimated radiation dose，9.0mGy) from head to proximate thigh was obtained at 40-60min after injection for anatomic localization and attenuation correction. PET scanning followed at2min/bed position with a 23-slice overlap. Images were reconstructed using ordered-subsets expectation maxim i-zation( 2 iterations， 10  subsets， 192× 192 matrix) and corrected for CT-based attenuation， deadtime， random events， and scatter.

Head-to-head comparison of 68Ga-DOTA-JR11 and 68Ga-DOTATATE PET/CT in patients with metastatic, well-differentiated neuroendocrine tumors: a prospective study.

Head-to-head comparison of 68Ga-DOTA-JR11 and 68Ga-DOTATATE PET/CT in patients with metastatic, well-differentiated neuroendocrine tumors: a prospective study.

The study was performed on a time-of-flight PET/CT Scanner

( Polestar m660; Sino Union Healthcare Inc. ) on 2 consecutive days.

Patients received an intravenous injection of 68Ga-DOTATATE(155±52MBq) on the first day and 68Ga-DOTA-JR11(148±52MBq) on the second day. A low-dose CT scan(120keV；100mAs；1.3pitch；2.5-mm slice thickness；0.5s rotation time； estimated radiation dose，9.0mGy) from head to proximate thigh was obtained at 40-60min after injection for anatomic localization and attenuation correction. PET scanning followed at 2min/bed position with a 23-slice overlap. Images were reconstructed using ordered-subsets expectation maximi-zation(2iterations，10  subsets， 192× 192 matrix) and corrected for CT-based attenuation， deadtime， random events， and scatter.

Recent developments in time-of-flight PET

Currently, a clinical evaluation of the whole-body PoleStar m660T OF-PET/CTs can-neris carried out[51] .The system is based on 3.63×3.63×20mm³ LYSO scintillator sarranged into detector modules (14× 14 crystals) . The detector modules are then com-bined into the total of 24 detector buckets (2x 4 detector modules) forming a four-ring scanner.The timing resolution of PoleStar is 434ps FWHM.

Focal Autoimmune Pancreatitis Mimicking Pancreatic Cancer on FDG PET/CT Imaging

Abstract：Autoimmune pan creat it i generally results in diffuse increased FDG atiytiougoutthepinTes on PET CT age.We peta cse of focal autoimmune pancreatitis with abn oral FDG activity involving only the pancreatic a il on PET/CTina6l-year-oldman who was pro vii on ally diag-nosedas having pancreatic cancer based on the CT find ngs.The diagnosis of au lo immune pan crea ii was based on pathological exam in at on and clev a led serumimmunogo-bunG4kvl. Following the steroid the npy,the paintwasgradually recovered.Key Words：cancer, FDG,PET/CT, type l autoimmune pane re at it is (Clin Nucl Med 2018; 43:57-59)

Chemokine receptor -4 targeted PET/CT with68Ga-Pentixa for in assessment of newly diagnosed multiple myeloma：comparison to 18F-FDG PET/CT

Qing qing Pan · Xinxin Cao · Yaping Luo  · Jian Li  ·JunFeng  · FangLi

Received：3 July 2019 / Accepted：7 November 2019/Publishedonline：

27 November 2019© Springer-Verlag GmbH Germany， part of Springer Nature 2019

INTERESTING  IMAGE

Recurrent/Residual Intracranial Phos phat uric Mesenchymal

Tumor Revealed on68Ga-DOT A TATE PET/CT

Jie Ding.MD，Ling Wang.MD，PhD，Shu Zhang.MD.Fan gLi MD，and Li Huo，MD，PhD