Integers representable while differences involving linear repeat series

We then compared the normal PET template with the abnormal deposition area of different dementia syndromes, including Alzheimer's disease and progressive supranuclear palsy.
This method was able to differentiate cognitively normal from Alzheimer's disease and progressive supranuclear palsy subjects.
This normal brain template was able to be integrated into clinical practice and research using PET analyses at our center.
This normal brain template was able to be integrated into clinical practice and research using PET analyses at our center.
F-Fluorodeoxyglucose (FDG) uptake in children is different from that in adults. Physiological accumulation is known to occur in growth plates, but the pattern of distribution has not been fully investigated. Our aim was to evaluate the metabolic activity of growth plates according to age and location.
We retrospectively evaluated 89 PET/CT scans in 63 pediatric patients (male female=25 38, range, 0-18 years). Patients were classified into four age groups (Group A 0-2 years, Group B 3-9 years, Group C 10-14 years and Group D 15-18 years). The maximum standardized uptake value (SUV
) of the proximal and distal growth plates of the humerus, the forearm bones and the femur were measured. The SUV
of each site and each age group were compared and statistically analyzed. click here We also examined the correlations between age and SUV
.
As for the comparison of SUV
in each location, the SUV
was significantly higher in the distal femur than those in the other sites (p< 0.01). SUV
in the distal humerus and the proximal forearm bones were significantly lower than those in the other sites (p< 0.01). In the distal femur, there was large variation in SUV
, while in the distal humerus and the proximal forearm bones, there was small variation. As for the comparison of SUV
in each age group, the SUV
in group D tended to be lower than those in the other groups, but in the distal femur, there was no significant difference among each age group.
Our data indicate that FDG uptake in growth plates varies depending on the site and age with remarkable uptake especially in the distal femur.
Our data indicate that FDG uptake in growth plates varies depending on the site and age with remarkable uptake especially in the distal femur.
In patients with papillary thyroid cancer (PTC), sentinel lymph node (SLN) radio-guided biopsy is not routinely used for detection of involved neck lymph nodes (NLN);
Tc- antimony sulfide colloid (
Tc- ASC) has been used for this purpose. In this study, besides
Tc-ASC another radiotracer,
Tc-phytate (
Tc-P) with different doses and injection methods were evaluated.
Twenty-two patients, scheduled to undergo thyroidectomy for PTC, were injected for radio-guided SLN biopsy in the morning of operation in 3 groups intra tumoral injection of about 1 mCi
Tc-P (group A; n=5); peritumoral injection of less than 3 mCi
Tc-ASC (group B; n=6); and peritumoral injection of 3 to 5 mCi
Tc-ASC with application of massage (group C; n=9). A patient refused to complete the study. A patient with follicular thyroid cancer was also excluded. No NLN was detected in the pre-operative ultra-sonographic examinations of all patients. Central neck dissection was done for all the participants. The presence of radio guided detected NLN and results of pathology were assessed.
In group A and B, no SLN was detected. NLNs were resected in 4 patients in group A and B; 2 of them involved by the tumor. In group C, 6 out of 9 patients (66.7%) had between 1 to 6 SLNs; the procedure failed to detect NLN in a patient in group C with surgically resected reactive NLN (failure rate 1 out of 7).
The results underscored the significance of SLN radio guided biopsy in patients with PTC; the radiotracer, dose and method of injection may affect the detection rate.
The results underscored the significance of SLN radio guided biopsy in patients with PTC; the radiotracer, dose and method of injection may affect the detection rate.A limitation to the wider introduction of personalised dosimetry in theranostics is the relative paucity of imaging radionuclides with suitable physical and chemical properties to be paired with a long-lived therapeutic partner. As most of the beta-emitting therapeutic radionuclides emit gamma radiation as well they could potentially be used as the imaging radionuclide as well as the therapeutic radionuclide. However, the downsides are that the beta radiation will deliver a significant radiation dose as part of the treatment planning procedure, and the gamma radiation branching ratio is often quite low. Gallium-67 has been in use in nuclear medicine for over 50 years. However, the tremendous interest in gallium imaging in theranostics in recent times has focused on the PET radionuclide gallium-68. In this article it is suggested that the longer-lived gallium-67, which has desirable characteristics for imaging with the gamma camera and a suitably long half-life to match biological timescales for drug uptake and turnover, has been overlooked, in particular, for treatment planning with radionuclide therapy. Gallium-67 could also allow non-PET facilities to participate in theranostic imaging prior to treatment or for monitoring response after therapy. Gallium-67 could play a niche role in the future development of personalised medicine with theranostics.
Primary duodenal tuberculosis is very rare. Due to a lack of specificity for its presenting symptoms, it is easily misdiagnosed clinically. Review of the few case reports and literature on the topic will help to improve the overall understanding of this disease and aid in differential diagnosis to improve patient outcome.
A 71-year-old man with a 30-plus year history of bronchiectasis and bronchitis presented to the Gastroenterology Department of our hospital complaining of intermittent upper abdominal pain. Initial imaging examination revealed a duodenal space-occupying lesion; subsequent upper abdominal contrast-enhanced computed tomography indicated duodenal malignant tumor. Physical and laboratory examinations showed no obvious abnormalities. In order to confirm further the diagnosis, electronic endoscopy was performed and tissue biopsies were taken. Duodenal histopathology showed granuloma and necrosis. In-depth tuberculosis-related examination did not rule out tuberculosis, so we initiated treatment with anti-tuberculosis drugs.