We have developed an automated system for the preparation of highly concentrated 188Re-perrhenate, diethylenetriamine pentaacetic acid (DTPA) and mercaptoacetyltriglycine (MAG3). The three procedural steps include concentration of 188Re-perrhanerate, chelation and purification and sterilization. The steps are operated by a small micro-controller. The eluted 188Re-perrhenate of 15 GBq/18 ml from...

Üreteropelvik bileşke darlığı (UPD), tanısı ile izlenen çocuk hastaların yönetimi tartışmalıdır ve merkezlere göre değişkenlik gösterir. Bu çalışmada Pamukkale Üniversitesi Çocuk Nefroloji Kliniğinde UPD tanısıyla takip edilen başvuru izlem bulgularının değerlendirilmesi amaçlanmıştır. kliniğinde Ocak 2014 Ağustos 2021 tarihleri arasında verileri retrospektif olarak değerlendirildi. Hastaların ...

PURPOSE The management of prenatally detected bilateral ureteropelvic junction obstruction (UPJO) remains controversial. We attempted to develop a treatment plan for patients with severe bilateral UPJO. MATERIALS AND METHODS We evaluated the records of 13 patients with prenatally diagnosed grade 3 or more bilateral hydronephrosis that led to the postnatal diagnosis of severe bilateral UPJO. U...

OBJECTIVE The present study examines whether or not baseline and acetazolamide (ACZ) Tc-99m MAG3 renography can assess renal blood flow reserve. METHODS Renography proceeded for 50 min after sequential injections of 370 MBq Tc-99m MAG3 for baseline renography and 10 min after a 1,000 mg injection of ACZ for ACZ renography. Effective renal plasma flow of renal cortex (cERPF) in each kidney and...

UNLABELLED The aim of this study is to assess the accuracy of the pre-existing single-plasma-sample method (SPSM) to measure the glomerular filtration rate (GFR) with Tc-99m-diethylenetriamine pentaacetic acid (Tc-99m-DTPA) in children and adolescents. In addition, the age-independent SPSM is evaluated with two algorithms (Bubeck and Russell) applied for Tc-99m-mercaptoacetyltriglycine (Tc-99m-...

Background 99mTc-mercaptoacetyl-triglycine (99mTc-MAG3) has been used for dynamic renal imaging since about 30 years. Free pertechnetate (99mTcO4), colloidal 99mTc ((99mTcO2)n), 99mTc-tartrate (precursor), precomplexes (99mTc-(MAG3)x) and lipophilic 99mTc-MAG2 are the main radiochemical impurities that may occur in the preparation. The total amount of these impurities has to be identified befor...

Contrast-enhanced ultrasound (CEUS) is an emerging technique to evaluate tissue perfusion. Promising results have been obtained in the evaluation of renal perfusion in health and disease, both in human and veterinary medicine. Renal scintigraphy using 99mTc-Mercaptoacetyltriglycine (MAG3) is another non-invasive technique that can be used to evaluate renal perfusion. However, no data are availa...

Received 9/26/2000; accepted 10/24/2000. For correspondence or reprints contact: Theodore S.T. Wang, Ph.D., Department of Radiology, College of Physicians and Surgeons, Columbia University, 622, West 168 Street, New York, NY 10032, U.S.A. Tel: (212)-3056466, Fax: (212)-3052962, E-mail: [email protected] Backgrounds: Following coronary angioplasty restenosis occurs in ≥30% of cases. Local irradi...

tracheomegaly or tracheobronchomegaly is a rare syndrome which is characterized by dramatic dilatation of the trachea and the major bronchi. this syndorme is usually associated with chronic respiratory infection and airway obstruction. in this paper, a case with tracheomegaly and bronchiectasis was scrutinized.