Role of Slice Thickness in MR Imaging of the Internal Auditory Canal
| Autor: | Irvin I. Kricheff, Andrew W. Litt, Kevin R. Bannon, Nicholas Kondo |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Gadolinium DTPA
medicine.medical_specialty Relative efficacy business.industry Slice thickness Contrast Media Temporal Bone Cerebellopontine Angle Neuroma Acoustic Pentetic Acid Cerebellopontine angle Neuroma medicine.disease Magnetic Resonance Imaging Mr imaging Auditory canal Cerebellar Diseases Organometallic Compounds medicine Humans Radiology Nuclear Medicine and imaging Radiology business Nuclear medicine |
| Zdroj: | Journal of Computer Assisted Tomography. 14:717-720 |
| ISSN: | 0363-8715 |
| DOI: | 10.1097/00004728-199009000-00007 |
| Popis: | The relative efficacy of post-Gd-DTPA 5 and 3 mm axial T1-weighted images was compared in the detection of lesions in the internal auditory canal and cerebellopontine angle. One hundred twenty consecutive patients were prospectively evaluated with 5 mm axial T1-weighted slices. If these were negative or questionable. 3 mm axial slices were immediately obtained as the next sequence. Eighteen percent of cases were positive and in none of these was the 5 mm study normal. However, in 22 negative cases and two positive cases, a 3 mm study was necessary for confirmation. Five millimeter axial scanning post Gd-DTPA is recommended as the initial study for detection of masses in the internal auditory canal and cerebellopontine angle. Because this study requires fewer acquisitions than 3 mm sections and can be done satisfactorily on low and midfield systems, there are potential time- and cost-saving benefits to this approach. |
| Databáze: | OpenAIRE |
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