Magnetic resonance angiography of the renal arteries using three-dimensional balanced turbo field-echo sequence with progressive spin saturation.

نویسندگان

  • Hideaki Kawamitsu
  • Yasushi Kaji
  • Kazuro Sugimura
چکیده

We developed a new method employing a balanced turbo field-echo (b-TFE) sequence with progressive spin saturation (PSS) for magnetic resonance angiography (MRA) of the renal arteries during breath-holding without the use of contrast agents. We compared our new method with conventional dynamic MRA of renal arteries. For all portions, renal MRA using b-TFE with PSS was clearer to define (p<0.002) than did conventional dynamic MRA. We confirmed that angiography of renal arteries using b-TFE with PSS was more useful than conventional dynamic MRA.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Balanced Turbo Field Echo with Extended k-space Sampling: A Fast Technique for the Thoracic Ductography

We evaluated the visibility of the thoracic duct by fast balanced turbo field echo with extended k-space sampling (bTFEe). The thoracic duct of 10 healthy volunteers was scanned by bTFEe using a 1.5-T magnetic resonance imaging (MRI), which was acquired in approximately 2 minutes. Three-dimensional (3D) turbo spin-echo (TSE) was obtained for comparison. The thoracic duct including draining loca...

متن کامل

Correlation between magnetic resonance angiography (MRA) and quantitative coronary angiography (QCA) in ectatic coronary vessels.

Coronary artery ectasia (CAE) is defined as a dilatation of an arterial segment to a diameter at least 1.5 times that of the adjacent normal artery. The correct follow-up of ectatic vessels is hampered by the need for repeat angiograms. In this work we compared quantitative coronary angiography (QCA) measurements of the diameter of the proximal most ectatic part of coronary vessels, with corres...

متن کامل

A free-breathing non-contrast-enhanced pulmonary magnetic resonance angiography at 3 Tesla.

BACKGROUND The breathhold contrast-enhanced three-dimensional magnetic resonance angiography (MRA) using T1-weighted gradient-echo imaging sequence is the standard technique for MRA of the thorax. However, this technique is not desirable for certain patients with respiratory insufficiency, serious renal impairment, or allergy to contrast agents. The objective of this study was to optimize and e...

متن کامل

Renal volumetry with magnetic resonance imaging

BACKGROUND No gold standard exists for renal volumetry in vivo. PURPOSE To devise and evaluate segmentation methods on magnetic resonance imaging (MRI) datasets. MATERIAL AND METHODS Five combinations of MRI pulse sequences and measuring methods were used to measure the renal volumes of five men aged 54-72 years scanned before autologous renal stem cell transplantation and three, six, and 1...

متن کامل

Improved imaging of cochlear nerve hypoplasia using a 3-Tesla variable flip-angle turbo spin-echo sequence and a 7-cm surface coil.

OBJECTIVE/HYPOTHESIS Magnetic resonance imaging of the temporal bone has an important role in decision making with regard to cochlea implantation, especially in children with cochlear nerve deficiency. The purpose of this study was to evaluate the usefulness of the combination of an advanced high-resolution T2-weighted sequence with a surface coil in a 3-Tesla magnetic resonance imaging scanner...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine

دوره 4 1  شماره 

صفحات  -

تاریخ انتشار 2005