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Conclusion The QI initiative found that increasing communication during rounds by using a standardized rounding process involving the bedside registered nurse can minimize interruptions and improve the efficiency of a trauma NP team. The key to the success of the QI initiative was the implementation of a standardized rounding process.Tc-MIBI has long been used to localize hyperfunctioning parathyroid tissue in patients with hyperparathyroidism. This tracer can also concentrate in various neoplastic tissues including prostate adenocarcinoma. We herein report a case with parathyroid hormone-secreting metastatic prostate cancer mimicking an ectopic parathyroid adenoma on the Tc-MIBI scan. We conclude that metastatic prostate cancer should be included as one of the differential diagnoses when interpreting Tc-MIBI scan.Brown adipose tissue (BAT), which produces energy and is known to play a role as a hibernating gland, is sometimes visualized on F-FDG PET in children or in slender young adults in a cold environment. Because BAT is activated by catecholamines, FDG uptake in BAT is also observed in patients with pheochromocytoma or paraganglioma. We present the case of an elderly woman with remarkable FDG uptake in BAT. Activation of BAT by a β3-adrenergic receptor agonist (mirabegron) prescribed for overactive bladder was suspected as the cause of the marked visualization of BAT in this patient.FTLD (Frontotemporal lobar degeneration) is a clinically and pathologically heterogeneous group of degenerative disorders, characterized by predominantly asymmetric degeneration of frontal and temporal lobes with selective neuronal loss and gliosis. The disease presents with variable degrees of impairment in behavior, language, executive control, and motor symptoms with progressive loss of cognition. On the basis of presenting clinical symptoms, FTLD is further divided into behavioral variant, nonfluent/agrammatic variant primary progressive aphasia (PPA), semantic variant PPA, logopenic variant PPA, progressive supranuclear palsy, and corticobasal ganglionic degeneration. Here we illustrate the utility of FDG PET with statistical parametric analysis for evaluation of these patients.Purpose The aims of this study were to demonstrate the feasibility of zero echo time (ZTE) MRI for jawbone identification, and to evaluate the quantitative performance of F-FDG PET/MRI with ZTE-based attenuation correction (ZTE-AC) compared with PET/CT and PET/MRI with Dixon MR-based AC (Dixon-AC) in patients with oral cavity cancer (OCC). Materials and methods Thirteen OCC patients underwent whole-body F-FDG PET/CT and subsequent regional PET/MRI with Dixon-AC and ZTE-AC in 1 day. SUVs of the primary OCC and metastatic cervical lymph nodes (CLNs) were measured on PET/CT (SUVCT), PET/MRI with Dixon-AC (SUVDixon), and ZTE-AC (SUVZTE). The SUVs were then compared. Results The ZTE MRI scans minimized the effects of metal artifacts from dentures, and ZTE-AC maps correctly delineated the jawbones. SUVDixon and SUVZTE had significant positive correlations with SUVCT (Pearson r = 0.97 and r = 0.99 for OCC, and r = 0.98 and r = 0.98 for CLNs, respectively). The mean ± SD of SUVCT, SUVDixon, and SUVZTE were 14.4 ± 8.0, 14.5 ± 8.6, and 15.6 ± 8.8 for OCC, and 6.3 ± 3.0, 8.0 ± 4.0, and 7.6 ± 3.9 for CLNs, respectively. https://www.selleckchem.com/products/sf2312.html For OCCs, SUVZTE was significantly higher than SUVCT (P less then 0.05), whereas there was no significant difference between SUVCT and SUVDixon or between SUVDixon and SUVZTE. For CLNs, SUVDixon and SUVZTE were significantly higher than SUVCT (P less then 0.01 and P less then 0.05, respectively), and SUVDixon was significantly higher than SUVZTE (P less then 0.01). Conclusions ZTE MRI can correctly identify jawbones while minimizing the effects of metal artifacts. The ZTE-AC method in F-FDG PET/MRI reduces the underestimation of tracer uptake due to Dixon-AC jawbone errors and improves the quantitative performance of PET for OCC patients.Liposarcoma is a common soft tissue sarcoma in retroperitoneum, but adrenal liposarcoma is rare. We here described a 61-year-old man with left-upper-quadrant pain, hypertension, and weight loss. Abdominal CT showed a large, heterogeneously enhanced mass on the left adrenal area, which compressed the surrounding pancreas, spleen, and left kidney. Subsequent FDG PET/CT demonstrated heterogeneous uptake by the lesion. Postoperative pathological findings confirmed the diagnosis of adrenal liposarcoma.F-NaF PET/CT in hyperparathyroidism and osteitis fibrosa cystica is rarely reported. We report the case of a 16-year-old boy who underwent NaF PET/CT for the evaluation of bilateral bone destruction, which was incidentally noted on an abdominal x-ray. The PET/CT images identified multiple bony abnormalities in the skull, pelvis, and limbs. In addition, a hypodense nodule was found posterior to the inferior pole of the right lobe of thyroid gland. Subsequent Tc-sestamibi imaging showed abnormal uptake in the neck nodule, which was confirmed as parathyroid adenoma by the pathology.Purpose Insulinomas are predominantly benign neuroendocrine tumors originating from beta cells within the islets of Langerhans of the endocrine pancreas. Because surgical resection represents the only curative therapy option, exact tumor localization and discrimination of insulinomas from focal or diffuse manifestations of congenital hyperinsulinism are crucial for optimal treatment strategies. We investigated the diagnostic value of glucagon-like peptide 1 receptor PET/CT using Ga-DOTA-exendin 4 for detecting insulinomas and compared the diagnostic value of PET scans performed at 2 time points. Methods In 10 patients with clinically and biochemically suspected insulinoma, PET/CT was performed at 1 hour (PET1) and 2 hours (PET2) after injection of Ga-DOTA-exendin 4. In this retrospective analysis, tracer uptake was visually assessed in both scans by 2 independent readers. SUVmax and tumor-to-background ratio (TBR) of focal lesions were assessed. Imaging results were compared with histopathologic findings, if patients underwent resection. Results Increased focal Ga-DOTA-exendin 4 uptake was observed in 8 of 10 patients concordantly by both readers. Seven patients with focal uptake underwent surgery with tumor enucleation and histopathologic proof of insulinoma (7/8). Two of 10 patients without focal uptake were considered to suffer from diffuse form of congenital hyperinsulinism and consequently received medical treatment. A significant increase of tumoral SUVmax on PET2 (PET1 SUVmax 20.2 ± 8.2 g/mL; PET2 SUVmax 24.7 ± 7.9 g/mL; P = 0.0018) did not result in a significant improvement in TBR (PET1 TBR 4.9 ± 1.7; PET2 TBR 4.3 ± 1.2; P = 0.2892). Conclusions Focal uptake of Ga-DOTA-exendin 4 reliably indicated insulinomas as histopathologically confirmed in all patients undergoing consecutive surgery. The diagnostic value of PET2 was not found to be superior to PET1, indicating that a single 1-hour Ga-DOTA-exendin 4 PET/CT scan is a sufficient and convenient approach for patient care.
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