The diagnostic performance of three-dimensional contrast-enhanced magnetic resonance angiography in demonstrating renal vasculature in patients with suspected renovascular hypertension

Meltem Özdemir,Halil Öztürk,Tahsin Rendan Edgüer,Alper Dilli,Baki Hekimoğlu,Emine Öztürk

doi:10.21601/ortadogutipdergisi.424843

Abstract

Amac: Calismamizin amaci, digital subtraction angiography (DSA) teknigini referans metod alarak, uc boyutlu kontrastli manyetik rezonans anjiyografi (3D CE-MRA) tekniginin, renal arter stenozu (RAS) tanisindaki ve segmental ve aksesuar renal arter goruntulemesindeki degerini saptamak idi. Gerec ve Yontem: Yirmi bes hastaya 3D CE-MRA ve DSA tetkikleri uygulandi. CE-MRA tekniginin RAS tanisindaki sensitivite, spesifisite ve pozitif ve negatif kestirim degerleri ile teknigin segmental ve aksesuar renal arter goruntulemedeki sensitivite degerleri hesaplandi. Bulgular: RAS tanisinda CE-MRA tekniginin sensitivite, spesifisite, pozitif ve negatif kestirim degerleri, ayni sira ile; %100, %97,8, %87,5, ve %100 olarak hesaplandi. Teknigin segmental ve aksesuar renal arter goruntulemedeki sensitivite degerlerinin, ayni sira ile; %58 ve %91,7 oldugu saptandi. Sonuc: 3D CE-MRA tekniginin, sadece renal arter stenozu tanisinda degil, aksesuar arterlerin goruntulemesinde de guvenilir oldugu saptandi. Ancak calismamizin sonuclarina gore, teknigin segmental arter goruntulemesindeki degeri sinirlidir.

Highlights

Renovascular hypertension is defined as the elevation of blood pressure as a result of renal artery stenosis (RAS) and activation of renin-angiotensin system
It is many experts’ opinion that, radiologic evaluation of patients with suspected renovascular hypertension should be started with Doppler ultrasonography (DUS)
All images obtained by CE-magnetic resonance angiography (MRA) were optimum in quality

Summary

Introduction

Renovascular hypertension is defined as the elevation of blood pressure as a result of renal artery stenosis (RAS) and activation of renin-angiotensin system. It constitutes the cause of 5.8% of all cases of secondary hypertension, and 12% of all cases of hypertension in general population [1]. Diagnosis of renovascular hypertension plays a critical role in preventing the development of ischemic nephropathy and cardiovascular complications [2]. It is many experts’ opinion that, radiologic evaluation of patients with suspected renovascular hypertension should be started with Doppler ultrasonography (DUS). It provides the opportunity for the treatment of RAS by percutaneous angioplasty (with or without stenting) [5]

Objectives

Methods

Results

Conclusion