Scintigraphic Evaluation of the Stump Region After Extremity Amputation and the Effect of Scintigraphy on Treatment.

Background: We evaluated the stump region with scintigraphy and compared the correlation of treatment modalities and scintigraphic results.

Methods: Sixty-eight cases with extremity amputation were included in the study. Amputation applied cases underwent four-phase Tc-99m hydroxymethylene diphosphonate scintigraphy.

Prevalence of Helicobacter Pylori Infection in School and Pre-School Aged Children with C-14 Urea Breath Test and the Association with Familial and Environmental Factors.

Objective: To investigate the prevalence of Helicobacter pylori (Hp) infection in pre-school and school age children with C-14 urea breath test, and to explore its association with age and socioeconomic factors in Turkey.

Methods: Hp infection status was determined by using Urea Breath Test (UBT). Patients who had previous gastric surgery, Hp eradication treatment or equivocal UBT results were excluded.

Findings of bone scintigraphy after leech theraphy.

Unlabelled: In this case report, we present a 70 year old female patient who had recieved Leech therapy (hirudotherapy) on her leg without informing referring physician. In dynamic bone scintigraphy there was increased perfusion and hyperemia in her left ankle and leg, also in late static images moderate increased uptake was seen in soft tissue region and at the fracture site of ankle. We learned that she had Leech therapy applied on her leg, which could explain the increased perfusion and hyperemia in dynamic and blood pool phases of bone scintigraphy because of Leech therapy's dilatory effects on superficial veins.

PET radiotracers for molecular imaging in dementia.

Molecular imaging with various biomarkers plays a significant role in the diagnostic assessment of patients with dementing disorders, by detecting functional and pathophysiologic changes in the brain. PET imaging, in particular, allows the measurements of different molecular targets, such as functional markers of neurodegeneration (glucose metabolism), markers for pathological aggregates (such as amyloid, tau and synuclein aggregates) and neuroinflammation, and also markers of several neurotransmission systems. In the current view, neurodegenerative diseases are associated with the development of pathologic changes that play a different role in disease onset and evolution, often starting long before the onset of clinically detectable impairment.

PET Molecular Imaging of Hypoxia in Ischemic Stroke: An Update.

Hypoxia, a condition of insufficient oxygen availability to support metabolism, occurs when the vascular supply is interrupted, as in stroke. The identification of the hypoxic and viable tissue in stroke as compared with irreversible lesions (necrosis) has relevant implications for the treatment of ischemic stroke. Traditionally, imaging by positron emission tomography (PET), using 15O-based radiotracers, allowed the measurement of perfusion and oxygen extraction in stroke, providing important insights in its pathophysiology.

A low recurrence rate is possible with a combination of surgery and radiosynovectomy for diffuse pigmented villonodular synovitis of the knee.

Background: Diffuse pigmented villonodular synovitis (DPVNS) is an uncommon proliferative disease. After only surgery, recurrence rates are high. This study presents the efficacy of combined surgical and adjuvant radiosynovectomy (RS) in the treatment of DPVNS.

Computed tomography calcium score scan for attenuation correction of N-13 ammonia cardiac positron emission tomography: effect of respiratory phase and registration method.

The use of coronary calcium scoring (CaScCT) for attenuation correction (AC) of (13)N-ammonia PET/CT studies (NH3) is still being debated. We compare standard ACCT to CaScCT using various respiratory phases and co-registration methods for AC. Forty-one patients underwent a stress/rest NH3.