MRI is a medical imaging method that does not use harmful or ionizing
radiation so it is safe and can be used to measure the proportions of iron that accumulate in the organs of the human body, especially the heart and liver
Perfect localization of hyperactive parathyroid glands is useful to minimize operation time, incision and reduce patient morbidity. 52 patients with hyperparathyroidism were investigated, 14 with primary and 38 with secondary hyperparathyroidism foll
owing renal failure. Surgery has been done on 36 patients (14 with primary and 22 with secondary hyperparathyroidism). Sensitivity of 99mTc-tetrofosmin scintigraphy was estimated after surgical removal of Hyperfunctioning glands and compared with that of ultrasound and magnetic resonance imaging. The sensitivity of 99mTc-scintigraphy (79,5%) exceeded the sensitivity of ultrasound (68,2%) and magnetic resonance imaging (71,6%). Parathyroid hormone (P.T.H.) and calcium levels in serum were compared with positive 99mTc-tetrofosmin Scintigraphy. Results demonstrated correlation between positive 99mTc-tetrofosmin scintigraphy and parathyroid hormone levels with significant statistical difference of P < 0.001 and all patients with primary hyperparathyroidism with P.T.H. levels of 195 pg/ml or more were scintigraphically positives. All patients with secondary hyperparathyroidism with P.T.H. levels of 1200 or more were positives. No correlation was detected between calcium levels and positivity or negativity of scintigraphic results.
In this research the nuclear splitting level allowed energies are found for N+ in the NH3SO3 compound (sulfamic acid) when the angle between molecular axis and the axis of the applied magnetic field in the range. We noticed the splitting level by act
ing the strong magnetic field. Therefore, we calculated the contribution of electric quadruple in the splitting process and its average value was E0=-0.1987neV. Moreover, the splitting level energies were calculated at minimum and maximum spin values. In addition, we found the frequency difference Δω at each value of β-angle.
