The State-Trait Anxiety Inventory (STAI) was administered to 43 normal volunteers imm~iate~y before and after a positron emission tomography (PET) procedure with [J*~-2-fluoro-2~eoxy-D-glucose (r*F-FDG). High traitanxious individuals had significantly higher state (situational) anxiety associated with the PET scan procedure than did low trait-anxious persons. State anxiety decreased significant...

OBJECTIVE F-18 fluorodeoxyglucose positron emission tomography (FDG-PET) is now a procedure of proven clinical value in the staging of primary lung cancer. This study evaluated the role of PET in the preoperative assessment of resectable lung metastases. METHODS Eighty-six patients with previously treated malignancy and proven or suspected lung metastases, deemed resectable at computed tomogr...

The purpose of this study was to investigate the appearance of Paget’s disease (PD) on 11C choline PET/CT and correlate these findings to serum alkaline phosphatase (ALP) level and skeletal scintigraphy. With IRB approval, our institutional 11C choline PET/CT database (9/2005-6/2015) was searched for patients with PD. Site of osseous involvement, CT appearance, and multiple semi-quantitative me...

OBJECTIVE To assess whether FDG PET could localize the recurrent or metastatic lesions in papillary thyroid cancer patients with negative radioiodine scan. METHODS Whole body PET was performed after injecting 370-555 MBq of 18F-FDG in 108 patients, who were suspected of having recurrence or metastasis and whose 131I whole body scans were negative. Recurrence or metastasis occurred in 63 patie...

A 63-year-old man was diagnosed with metastatic MCC. Preliminary staging PET scan with 18F-FDG was not done at the time of diagnosis. After completion of chemo- and radiotherapy, the patient underwent a CT scan of the area from the maxilla to the ischium; no evidence of disease was noted. Clinically, the patient was considered to be in remission. The CT scan was followed by head-to-toe FDG-PET ...

Figure 1 (A) Positron emission tomography CT (PET-CT) scan shows a hypermetabolic lesion located superficial to the lower sternum (arrow), measuring about 3.80×4.77×4.84 cm. SUV max=12.9. (B) PET-CT scan shows a hypermetabolic lesion located in the right first intercostal space with erosion of the first rib (arrow), measuring about 3.25×5.62×4.25 cm. SUV max=10.8. (C) PET-CT scan shows a hyperm...

The purpose of this study was to evaluate the added value of a fourth and subsequent follow-up PET/CT scans to clinical assessment and impact on patient management in patients with colorectal cancer.Methods: This was an institutional review board– approved, retrospective study. Eight hundred twenty-two patients with biopsy-proven colorectal cancer, who underwent 18F-FDG PET/CT, were identified ...

UNLABELLED In murine models, resection of a primary tumor leads to increased vascularization and accelerated growth of metastases that previously had remained microscopic. To study such a potentially inhibitory effect of primary tumors on the outgrowth of distant metastases in humans, we assessed the metabolic activity of liver metastases by 18F-FDG PET before and after resection of primary col...

Positron emission tomography/computed tomography (PET/CT) is an important tool to identify occult melanoma metastasis. To date, it is controversial which patients with primary cutaneous melanoma should have staging PET/CT. In this retrospective analysis of more than 800 consecutive patients with cutaneous melanoma, we sought to identify factors predictive of PET/CT positivity in the setting of ...

BACKGROUND Positron emission tomography (PET) is more accurate than computed tomography (CT) in staging and restaging of lymphoma, but both are considered necessary. Increasingly, PET is carried out with a low-dose CT scan. Many patients undergo both PET/CT and standard diagnostic CT. The clinical utility of performing both studies in patients with lymphoma was evaluated. PATIENTS AND METHODS...