26
|
Mori E, Miyamoto H, Nakamori S, Saita C, Onishi M, Iwamoto N, Goto R, Honda Y, Aruga T, Horio H. The pathological assessment of pulmonary nodules in breast cancer patients by video-assisted thoracoscopic surgery. Eur J Surg Oncol 2019. [DOI: 10.1016/j.ejso.2018.10.137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
27
|
Mori E, Ancillotto L, Lovari S, Russo D, Nerva L, Mohamed WF, Motro Y, Di Bari P, Plebani M. Skull shape and Bergmann's rule in mammals: hints from Old World porcupines. J Zool (1987) 2019. [DOI: 10.1111/jzo.12651] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
28
|
Mori E, Menchetti M, Zozzoli R, Milanesi P. The importance of taxonomy in species distribution models at a global scale: the case of an overlooked alien squirrel facing taxonomic revision. J Zool (1987) 2018. [DOI: 10.1111/jzo.12616] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
29
|
Favaro PF, Reischak D, Brandao PE, Villalobos EMC, Cunha EMS, Lara MCC, Benvenga GU, Dias RA, Mori E, Richtzenhain LJ. Comparison among three different serological methods for the detection of equine influenza virus infection. REV SCI TECH OIE 2018; 36:789-798. [PMID: 30160701 DOI: 10.20506/rst.36.3.2714] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The equine influenza virus (EIV) H3N8 subtype is responsible for all EIV outbreaks worldwide while the H7N7 subtype is less pathogenic and is considered extinct as it has not been confirmed in outbreaks since 1980. Although EIV is enzootic in Brazil, few reports describe the actual EIV antibody status in the country. The aims of this study were: - to evaluate the efficiency of different serum treatments described by the World Organisation for Animal Health (OIE) and the World Health Organization (WHO) to remove non-specific haemagglutination inhibitors for the haemagglutination inhibition (HI) assay for EIV - to evaluate the presence of EIV antibodies by HI, enzyme-linked immunosorbent assay and agar gel immunodiffusion in 83 non-vaccinated equines from São Paulo State - to evaluate a strategy to better analyse equine sera for EIV antibodies. Although there was no statistical difference among treatments, receptor-destroying enzyme treatment followed by chicken erythrocyte adsorption showed more consistent results, which corroborate the OIE and WHO recommendation to use this treatment preferentially. The HI results suggest equine H3N8 virus circulation among the animals tested from São Paulo State. The algorithm suggested here could be used to guide antibody detection against equine influenza virus in equines, improving the test specificity by aiming to avoid false positive results.
Collapse
|
30
|
Ancillotto L, Studer V, Howard T, Smith VS, McAlister E, Beccaloni J, Manzia F, Renzopaoli F, Bosso L, Russo D, Mori E. Environmental drivers of parasite load and species richness in introduced parakeets in an urban landscape. Parasitol Res 2018; 117:3591-3599. [PMID: 30167793 DOI: 10.1007/s00436-018-6058-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 08/15/2018] [Indexed: 11/24/2022]
Abstract
Introduced species represent a threat to native wildlife worldwide, due to predation, competition, and disease transmission. Concurrent introduction of parasites may also add a new dimension of competition, i.e. parasite-mediated competition, through spillover and spillback dynamics. Urban areas are major hotspots of introduced species, but little is known about the effects of urban habitat structure on the parasite load and diversity of introduced species. Here, we investigated such environmental effects on the ectoparasite load, richness, and occurrence of spillback in two widespread invasive parakeets, Psittacula krameri and Myiopsitta monachus, in the metropolitan area of Rome, central Italy. We tested 231 parakeets and found that in both species parasite load was positively influenced by host abundance at local scale, while environmental features such as the amount of natural or urban habitats, as well as richness of native birds, influenced parasite occurrence, load, and richness differently in the two host species. Therefore, we highlight the importance of host population density and habitat composition in shaping the role of introduced parakeets in the spread of both native and introduced parasites, recommending the monitoring of urban populations of birds and their parasites to assess and manage the potential occurrence of parasite-mediated competition dynamics as well as potential spread of vector-borne diseases.
Collapse
|
31
|
Marmorino F, Cremolini C, Bergamo F, Pella N, Antoniotti C, Rossini D, Dell'Aquila E, Masi G, Salvatore L, Loupakis F, Marcucci L, Gemma D, Cardellino G, Borelli B, Ricci V, Delfanti S, Mori E, Tonini G, Lonardi S, Fontanini G, Boni L, Falcone A. FOLFOXIRI plus bevacizumab (bev) followed by maintenance with bev alone or bev plus metronomic chemotherapy (metroCT) in mCRC: Final results of the phase II randomized MOMA trial by GONO. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy149.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
32
|
Kurosu S, Nakai Y, Yamada S, Chujo T, Mori E, Nakao J, Uemura K. [A Case of Kanji Agraphia Resulting from Intracerebral Hemorrhage on the Left Temporal Lobe Associated with Multiple Dural Arteriovenous Fistulas]. BRAIN AND NERVE = SHINKEI KENKYU NO SHINPO 2017; 69:1435-1441. [PMID: 29282347 DOI: 10.11477/mf.1416200931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A 60-year-old, right-handed man suffered from mild word finding difficulties and kanji agraphia. Brain computed tomography revealed left temporal lobe hemorrhage, and cerebral angiogram revealed multiple dural arteriovenous fistulas (d-AVFs) in the left anterior cranial fossa and middle cranial fossa. Surgical shunt ablation was performed, and the lesions were obliterated completely. Analysis of the kanji agraphia during neuropsychological rehabilitation showed similar symptoms to those of the left posterior inferior temporal lobe lesion. Re-evaluation of magnetic resonance imaging showed multiple microbleeds on the left inferior temporal lobe, which could be responsible for the kanji agraphia. In this case, analysis of clinical symptoms with careful neuropsychological examination was important for understanding these pathologies. (Received March 21, 2017; Accepted June 21, 2017; Published December 1, 2017).
Collapse
|
33
|
Itabashi R, Nishio Y, Kataoka Y, Saito T, Shigehatake Y, Fukuma K, Endo K, Yazawa Y, Mori E. Cognitive impairment in acute stroke patients with isolated infarcts in the territory of lenticulostriate arteries. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
34
|
Baba T, Kawasaki I, Mori E, Takeda A. Mechanisms underlying loss of awareness of hyposmia in Parkinson's disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
35
|
Mori E. Normal pressure hydrocephalus: From mechanism to management. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
36
|
Mori E, Bozzi R, Laurenzi A. Feeding habits of the crested porcupine Hystrix cristata L. 1758 (Mammalia, Rodentia) in a Mediterranean area of Central Italy. EUROPEAN ZOOLOGICAL JOURNAL 2017. [DOI: 10.1080/24750263.2017.1329358] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
37
|
Yamada S, Ishikawa M, Miyajima M, Atsuchi M, Kimura T, Kazui H, Mori E. Disease duration: the key to accurate CSF tap test in iNPH. Acta Neurol Scand 2017; 135:189-196. [PMID: 26923727 DOI: 10.1111/ane.12580] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2016] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The cerebrospinal fluid tap test for idiopathic normal pressure hydrocephalus (iNPH) is one of the good predictors of the shunt treatment, although this test has a low sensitivity. We aimed to identify key parameters that could be used to improve this sensitivity. MATERIALS & METHODS During 2010-2011, we recruited and then followed 93 patients with possible iNPH for 12 months after shunt. Among them, 82 patients were finally enrolled in this study. The modified Rankin Scale, iNPH grading scale, and several quantitative measurements were evaluated at entry, after the tap test, before and after shunt. Area under the receiver-operating characteristic curves (AUCs), sensitivities, and specificities of the tap test for predicting shunt effectiveness were calculated for each measurement. They were additionally assessed after stratification by disease duration since the initial presentation of iNPH symptoms. RESULTS The gait disturbance on the iNPH grading scale had the highest accurate scale at the tap test for predicting effectiveness 12 months after shunt: AUC 0.74, sensitivity 56.5%, specificity 91.7%. This AUC increased to 0.76, 0.91 and 0.94 in the subgroup of disease duration <24, <12, and <6 months, respectively. The sensitivity and specificity of the gait disturbance on the iNPH grading scale in the subgroup of <12 months' duration were 92.3% and 90.0%. CONCLUSIONS The shorter period of clinical symptoms, for example, <12 months, made the tap test sufficiently accurate examination for predicting improvement 12 months after shunt surgery. The findings imply that the tap test should be applied to patients being considered for shunt surgery as soon as possible.
Collapse
|
38
|
Mori E, Ancillotto L, Menchetti M, Strubbe D. ‘The early bird catches the nest’: possible competition between scops owls and ring-necked parakeets. Anim Conserv 2017. [DOI: 10.1111/acv.12334] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
39
|
Mori E, Grandi G, Menchetti M, Tella JL, Jackson HA, Reino L, van Kleunen A, Figueira R, Ancillotto L. Worldwide distribution of non–native Amazon parrots and temporal trends of their global trade. ANIMAL BIODIVERSITY AND CONSERVATION 2017. [DOI: 10.32800/abc.2017.40.0049] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
40
|
Takao T, Kubota K, Maeda T, Okada S, Morishita Y, Mori E, Yugue I, Kawano O, Sakai H, Ueta T, Shiba K. A radiographic evaluation of facet sagittal angle in cervical spinal cord injury without major fracture or dislocation. Spinal Cord 2016; 55:515-517. [DOI: 10.1038/sc.2016.172] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 10/29/2016] [Accepted: 10/30/2016] [Indexed: 11/09/2022]
|
41
|
Di Donato S, Mislang A, Vignoli A, Mori E, Vitale S, Biagioni C, Hart C, Becheri D, Del Monte F, Luchinat C, Di Leo A, Mottino G, Tenori L, Biganzoli L. Serum metabolomic as biomarkers to differentiate early from metastatic disease in elderly colorectal cancer (crc) patients. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw335.20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
42
|
Narita W, Nishio Y, Baba T, Iizuka O, Ishihara T, Matsuda M, Iwasaki M, Tominaga T, Mori E. High-Convexity Tightness Predicts the Shunt Response in Idiopathic Normal Pressure Hydrocephalus. AJNR Am J Neuroradiol 2016; 37:1831-1837. [PMID: 27365329 DOI: 10.3174/ajnr.a4838] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 04/18/2016] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Although neuroimaging plays an important role in the diagnosis of idiopathic normal pressure hydrocephalus, its predictive value for response to shunt surgery has not been established. The purpose of the current study was to identify neuroimaging markers that predict the shunt response of idiopathic normal pressure hydrocephalus. MATERIALS AND METHODS Sixty patients with idiopathic normal pressure hydrocephalus underwent presurgical brain MR imaging and clinical evaluation before and 1 year after shunt surgery. The assessed MR imaging features included the Evans index, high-convexity tightness, Sylvian fissure dilation, callosal angle, focal enlargement of the cortical sulci, bumps in the lateral ventricular roof, and deep white matter and periventricular hyperintensities. The idiopathic normal pressure hydrocephalus grading scale total score was used as a primary clinical outcome measure. We used measures for individual symptoms (ie, the idiopathic normal pressure hydrocephalus grading scale subdomain scores, such as gait, cognitive, and urinary scores), the Timed Up and Go test, and the Mini-Mental State Examination as secondary clinical outcome measures. The relationships between presurgical neuroimaging features and postoperative clinical changes were investigated by using simple linear regression analysis. To identify the set of presurgical MR imaging features that best predict surgical outcomes, we performed multiple linear regression analysis by using a bidirectional stepwise method. RESULTS Simple linear regression analyses demonstrated that presurgical high-convexity tightness, callosal angle, and Sylvian fissure dilation were significantly associated with the 1-year changes in the clinical symptoms. A multiple linear regression analysis demonstrated that presurgical high-convexity tightness alone predicted the improvement of the clinical symptoms 1 year after surgery. CONCLUSIONS High-convexity tightness is a neuroimaging feature predictive of shunt response in idiopathic normal pressure hydrocephalus.
Collapse
|
43
|
Mörtzell Henriksson M, Newman E, Witt V, Derfler K, Leitner G, Eloot S, Dhondt A, Deeren D, Rock G, Ptak J, Blaha M, Lanska M, Gasova Z, Hrdlickova R, Ramlow W, Prophet H, Liumbruno G, Mori E, Griskevicius A, Audzijoniene J, Vrielink H, Rombout S, Aandahl A, Sikole A, Tomaz J, Lalic K, Mazic S, Strineholm V, Brink B, Berlin G, Dykes J, Toss F, Axelsson CG, Stegmayr B, Nilsson T, Norda R, Knutson F, Ramsauer B, Wahlström A. Adverse events in apheresis: An update of the WAA registry data. Transfus Apher Sci 2016; 54:2-15. [PMID: 26776481 DOI: 10.1016/j.transci.2016.01.003] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Apheresis with different procedures and devices are used for a variety of indications that may have different adverse events (AEs). The aim of this study was to clarify the extent and possible reasons of various side effects based on data from a multinational registry. The WAA-apheresis registry data focus on adverse events in a total of 50846 procedures in 7142 patients (42% women). AEs were graded as mild, moderate (need for medication), severe (interruption due to the AE) or death (due to AE). More AEs occurred during the first procedures versus subsequent (8.4 and 5.5%, respectively). AEs were mild in 2.4% (due to access 54%, device 7%, hypotension 15%, tingling 8%), moderate in 3% (tingling 58%, urticaria 15%, hypotension 10%, nausea 3%), and severe in 0.4% of procedures (syncope/hypotension 32%, urticaria 17%, chills/fever 8%, arrhythmia/asystole 4.5%, nausea/vomiting 4%). Hypotension was most common if albumin was used as the replacement fluid, and urticaria when plasma was used. Arrhythmia occurred to similar extents when using plasma or albumin as replacement. In 64% of procedures with bronchospasm, plasma was part of the replacement fluid used. Severe AEs are rare. Although most reactions are mild and moderate, several side effects may be critical for the patient. We present side effects in relation to the procedures and suggest that safety is increased by regular vital sign measurements, cardiac monitoring and by having emergency equipment nearby.
Collapse
|
44
|
Shimizu Y, Mori E, Wada K, Otori N, Kojima H. Airway intervention in cases of acute epiglottitis. B-ENT 2016; 12:279-284. [PMID: 29709131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
UNLABELLED Airway intervention in cases of acute epiglottitis.Problem/objectives: In cases of acute epiglottitis, indications for airway intervention have not been established. In the present study, we reviewed patients with acute epiglottitis to identify clinical factors, which suggest airway intervention should be performed. METHODOLOGY Patients with acute epiglottitis admitted to The Jikei University Daisan Hospital (Tokyo) from 2004 to 2013 were identified. Patients' characteristics, histories, laryngoscopic findings and laboratory findings were reviewed and analysed. RESULTS Of the 83 patients (82 adults and one adolescent) in the sample, 16 (19%) underwent airway intervention and conservative treatment. The factors that were significantly more likely to have been present in patients who received airway intervention were odynophagia, drooling, hoarseness, muffled voice, dyspnoea, swelling of the posterior side of the epiglottis, less than 50% of the glottis area being visible with laryngoscopy, and a high white blood cell (WBC) count. The only factor that was shown by multiple logistic regression analysis to be distinctively predictive of airway intervention was "less than 50% of the glottis area being visible" (P = .000, odds ratio = 23.630, sensitivity = 86.6%, specificity = 78.6%, predictive accuracy = 85.2%). CONCLUSIONS When considering whether airway intervention should be performed in cases of acute epiglottitis, the most important clinical factor is the laryngoscopic finding that "less than 50% of the glottis area being visible." Other important clinical factors to consider are odynophagia, drooling, hoarseness, muffled voice, dyspnoea, swelling of the posterior side of the epiglottis and a high WBC count.
Collapse
|
45
|
Tassi R, Perrone G, Brugia M, Simi L, Petreni P, Mori E, Landini I, Pazzagli M, Mazzei T, Mini E, Nobili S. Fluoropyrimidine-related toxicity in gastrointestinal cancer patients. Assessment of risk factors. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv340.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
46
|
Mori E, Petters W, Schriever VA, Valder C, Hummel T. Exposure to odours improves olfactory function in healthy children. Rhinology 2015; 53:221-6. [PMID: 26363163 DOI: 10.4193/rhino14.192] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Short-term exposure to odours, also called "olfactory training" has been shown to improve olfactory function in healthy people but also in people with olfactory loss. Aim of this single center, prospective, controlled study was to investigate the change of olfactory function following twice-daily, short-term exposure to 4 odours over a period of approximately 12 weeks. MATERIAL AND METHODS We compared odour identification abilities and odour thresholds between an olfactory training group (TR group) and a group that did not perform such training (noTR group). Participants exposed themselves twice daily to 4 odours ("rose", "eucalyptus", "lemon", "clove"). Olfactory testing was performed before and after the training period using the "Sniffin' Sticks" test kit (odour identification plus odour thresholds). RESULTS At baseline the two groups were not significantly different in terms of age and measures of olfactory sensitivity. The TR group performed significantly better for odour thresholds for all 4 odours compared to the noTR group after 12 weeks of olfactory training. Also, with regard to odour identification the TR group outperformed the noTR group. No significant differences were found for diary-based intensity ratings. CONCLUSION Repeated exposure to odours seems to improve general olfactory sensitivity in children.
Collapse
|
47
|
Schriever V, Boerner C, Mori E, Smitka M, Hummel T. Changes of olfactory processing in childhood and adolescence. Neuroscience 2015; 287:15-22. [DOI: 10.1016/j.neuroscience.2014.12.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Revised: 10/25/2014] [Accepted: 12/09/2014] [Indexed: 11/17/2022]
|
48
|
Mori E, Petters W, Schriever V, Valder C, Hummel T. Exposure to odours improves olfactory function in healthy children. Rhinology 2015. [DOI: 10.4193/rhin14.192] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
49
|
Shibata M, Uyeda M, Kido Y, Kinoshita M, Kosugi Y, Hashimoto Y, Takeshita Y, Mori E. Gentamicin Components, Produced by a New Isolate ofMicromonospora. ACTA ACUST UNITED AC 2014. [DOI: 10.1080/00021369.1980.10864355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
50
|
Mugikura S, Kikuchi H, Fujii T, Murata T, Takase K, Mori E, Marinković S, Takahashi S. MR imaging of subcallosal artery infarct causing amnesia after surgery for anterior communicating artery aneurysm. AJNR Am J Neuroradiol 2014; 35:2293-301. [PMID: 25082820 DOI: 10.3174/ajnr.a4057] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE During surgery to treat an aneurysm in the anterior communicating artery, injury to the subcallosal artery, a perforator of the anterior communicating artery, may lead to infarction that produces basal forebrain amnesia after surgery. Our purpose was to examine whether 3D MR imaging can detect subcallosal artery infarction in patients with amnesia after surgery for an anterior communicating artery aneurysm. MATERIALS AND METHODS We evaluated 3D-T2-weighted MR images obtained a median of 4 months after treatment of anterior communicating artery aneurysm for the presence of infarcted foci in 10 consecutive patients with postoperative amnesia. Because the subcallosal artery and its neighboring perforator, the recurrent artery of Heubner, were considered the most easily affected vessels during that surgery, we focused mainly on 8 regions of the subcallosal artery territory per hemisphere and 5 regions of the recurrent artery of Heubner territory per hemisphere. RESULTS All 10 patients had infarcts in the territory of the subcallosal artery (median, 9 regions per patient), and most were bilateral (9 of 10 patients). Five patients had additional infarcted foci in the territory of the recurrent artery of Heubner (median, 1 region per patient), all unilateral. Among the regions perfused by the subcallosal artery, the column of the fornix was involved in all patients; the anterior commissure, in 9; and the paraterminal gyrus, in 8 patients. CONCLUSIONS 3D MR imaging revealed subcallosal artery infarction, the distribution of which was mostly bilateral, presumably owing to the unpairedness of that artery, in patients with postoperative amnesia after anterior communicating artery aneurysm repair.
Collapse
|