دورية أكاديمية
[Magnetic resonance angiography of the intracranial circle using magnetization transfer contrast (MTC)].
| العنوان: | [Magnetic resonance angiography of the intracranial circle using magnetization transfer contrast (MTC)]. |
|---|---|
| المؤلفون: | CATALANO, Carlo, LAGHI, ANDREA, PASSARIELLO, Roberto, P. Pavone, J. Faroni, M. Clementi, M. Di Girolamo, G. A. Petroni |
| المساهمون: | Catalano, Carlo, P., Pavone, Laghi, Andrea, J., Faroni, M., Clementi, M., Di Girolamo, G. A., Petroni, Passariello, Roberto |
| سنة النشر: | 1995 |
| المجموعة: | Sapienza Università di Roma: CINECA IRIS |
| مصطلحات موضوعية: | cerebrovascular circulation, cerebrovascular disorder, evaluation studies as topic, human, intracranial aneurysm, intracranial arteriovenous malformation, magnetic resonance angiography |
| الوصف: | Magnetic Resonance Angiography (MRA) is becoming an accurate technique to study vascular conditions, especially when the intracranial circulation is involved. Nevertheless, the contrast-to-noise (C/N) ratio in MRA images is often inadequate to obtain diagnostic images. C/N ratio can be increased by using magnetization transfer contrast (MTC), the technique which allows to reduce the signal from the stationary tissues surrounding vascular structures. To demonstrate the value of MTC, 10 healthy volunteers and 10 patients with different cerebral vascular conditions were examined. All exams were performed using 3D MOTSA (Multiple Overlapping Thin Slab Acquisition) Time of Flight sequences, with and without MTC. A quantitative analysis was carried out in the images with and without MTC, measuring the signal intensity value in the regions of interest at the vascular and stationary structures. A qualitative analysis was also carried out with a double blind study by two independent radiologists. Our results showed that MTC allows to reduce stationary tissues signal intensity, without affecting flowing blood signal intensity. Therefore, the C/N ratio is increased, thus allowing better depiction of smaller peripheral branches. In conclusion, MTC applied to intracranial MRA allows image quality to be markedly improved, with an overall increase in the diagnostic accuracy of this technique. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | STAMPA |
| اللغة: | Italian |
| العلاقة: | info:eu-repo/semantics/altIdentifier/pmid/7754116; volume:89; issue:3; firstpage:245; lastpage:249; numberofpages:5; journal:LA RADIOLOGIA MEDICA; http://hdl.handle.net/11573/387094Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0029263069; http://www.scopus.com/inward/record.url?eid=2-s2.0-0029263069&partnerID=65&md5=329b2c044d2f34d0ddc33e2d9fe48a17Test |
| الإتاحة: | http://hdl.handle.net/11573/387094Test http://www.scopus.com/inward/record.url?eid=2-s2.0-0029263069&partnerID=65&md5=329b2c044d2f34d0ddc33e2d9fe48a17Test |
| رقم الانضمام: | edsbas.62965A89 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |