Anass Benomar, Jose Danilo B Diestro, Houssam Darabid, Karim Saydy, Lora Tzaneva, Jimmy Li, Eleyine Zarour, William Tanguay, Nohad El Sayed, Igor Gomes Padilha, Laurent Létourneau-Guillon, Céline Bard, Kristoff Nelson, Alain Weill, Daniel Roy, Johanna Eneling, William Boisseau, Thanh N Nguyen, Mohamad Abdalkader, Ahmed A Najjar, Ahmad Nehme, Émile Lemoine, Gregory Jacquin, David Bergeron, Tristan Brunette-Clément, Chiraz Chaalala, Michel W Bojanowski, Moujahed Labidi, Roland Jabre, Katrina H D Ignacio, Abdelsimar T Omar, David Volders, Adam A Dmytriw, Jean-François Hak, Géraud Forestier, Quentin Holay, Richard Olatunji, Ibrahim Alhabli, Lorena Nico, Jai J S Shankar, Adrien Guenego, Jose L R Pascual, Thomas R Marotta, Juan I Errázuriz, Amy W Lin, Aderaldo Costa Alves, Robert Fahed, Christine Hawkes, Hubert Lee, Elsa Magro, Lila Sheikhi, Tim E Darsaut, Jean Raymond
BACKGROUND AND PURPOSE: To evaluate the reliability and accuracy of nonaneurysmal perimesencephalic subarachnoid hemorrhage (NAPSAH) on Noncontrast Head CT (NCCT) between numerous raters. MATERIALS AND METHODS: 45 NCCT of adult patients with SAH who also had a catheter angiography (CA) were independently evaluated by 48 diverse raters; 45 raters performed a second assessment one month later. For each case, raters were asked: 1) whether they judged the bleeding pattern to be perimesencephalic; 2) whether there was blood anterior to brainstem; 3) complete filling of the anterior interhemispheric fissure (AIF); 4) extension to the lateral part of the sylvian fissure (LSF); 5) frank intraventricular hemorrhage; 6) whether in the hypothetical presence of a negative CT angiogram they would still recommend CA...
February 20, 2024: Journal of Neuroradiology. Journal de Neuroradiologie