Neuroradiology — Flashcards

Flashcard 101: What is the best investigation for choanal atresia?

Answer: CT scan

Flashcard 102: The investigation of choice for stroke is a _____.

Answer: NCCT

Flashcard 103: What is the investigation of choice for Juvenile nasopharyngeal angiofibroma (JNA)?

Answer: CECT (Contrast-Enhanced Computed Tomography)

Extra: CECT is the investigation of choice to assess the extent of the tumor and bone involvement. **Key Findings:** * **Holman-Miller sign (Antral sign):** Anterior bowing of the posterior wall of the maxillary antrum. * **Angiography:** Gold standard for diagnosis (shows "tumor blush") and used for preoperative embolization. * **Biopsy:** Contraindicated due to the risk of profuse bleeding.

Flashcard 104: What is the investigation of choice to identify nerve damage in SCIWORA?_____

Answer: MRI

Flashcard 105: What is the investigation of choice for diagnosing brain abscess?_____

Answer: MRI

Flashcard 106: What is the investigation of choice for a nasal meningocele?

Answer: MRI

Flashcard 107: What is the investigation of choice for diagnosis of Angiofibroma?_____

Answer: CT scan

Flashcard 108: _____ is the investigation of choice to demonstrate leptomeningeal metastasis

Answer: Contrast MRI

Flashcard 109: What is the gold standard for diagnosis of acoustic neuroma?

Answer: MRI with gadolinium contrast

Flashcard 110: The most typical pattern seen in brain tumours on MR spectroscopy includes an _____ in choline accompanied by a _____ in N-acetylaspartate (NAA) and creatine.

Answer: elevation; decrease