Abstract:Higher incidence of dVRs was found in children with headache and epilepsy. No association was found between localization of dVRs and symptomatology of different nervous system diseases except for large dVRs probably due to the pressure on the surrounding tissues.
“…Three studies investigated PVS among children and the fourth among adults as well. Two studies (1,2) found a positive association between migraine and PVS, the third (3) between headache and PVS and the fourth (4) between both headache and migraine and PVS. Since migraine may be associated with neurogenic perivascular inflammation (5) and PVS are linked to lymphatic drainage of the brain parenchyma (6), it seems plausible that migraine could increase the number of PVS visible on MRI.…”
Section: Introductionmentioning
confidence: 99%
“…This study included PVS in BG and HWM. Three of the previous studies investigated only PVS in the HWM (1–3) whereas the fourth investigated both BG and HWM (4). Figure 1.Perivascular spaces (PVS) in the hemispheric white (HWM) matter visible on magnetic resonance imaging (MRI).…”
In contrast to previous studies, the present large, blinded, population-based study showed no increase in number of dilated PVS among headache sufferers. Fewer PVS among those with migraine without aura may be a spurious finding.
“…Three studies investigated PVS among children and the fourth among adults as well. Two studies (1,2) found a positive association between migraine and PVS, the third (3) between headache and PVS and the fourth (4) between both headache and migraine and PVS. Since migraine may be associated with neurogenic perivascular inflammation (5) and PVS are linked to lymphatic drainage of the brain parenchyma (6), it seems plausible that migraine could increase the number of PVS visible on MRI.…”
Section: Introductionmentioning
confidence: 99%
“…This study included PVS in BG and HWM. Three of the previous studies investigated only PVS in the HWM (1–3) whereas the fourth investigated both BG and HWM (4). Figure 1.Perivascular spaces (PVS) in the hemispheric white (HWM) matter visible on magnetic resonance imaging (MRI).…”
In contrast to previous studies, the present large, blinded, population-based study showed no increase in number of dilated PVS among headache sufferers. Fewer PVS among those with migraine without aura may be a spurious finding.
“…Changes in white matter are associated with aging and hypertension [25], [26]. White matter changes are foci of gliosis and ischemic demyelination [27]. We classified pineal cysts as minor abnormalities except when present with mass effect leading to compression of the superior colliculus or compression on cerebral aqueduct and cause an obstructive hydrocephalus.…”
BACKGROUND: Headache is one of the most common complaint in medical practice and the most often neurological symptom.
AIM: The aim of our study was to estimate the frequency of abnormal magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) findings in patients with non-acute headache without focal neurological abnormalities.
MATERIAL AND METHODS: The results of the MRI and MRA were retrospectively analyzed. As major abnormalities, we took into account tumor, stroke, extraaxial collection, Chiari malformations, and vascular pathology (aneurysm and arterial-venous malformation).
RESULTS: Two hundred twenty-five patients fulfilled the criteria. Out of 225 patients with median age of 37 (18–85) years, 78% of the patients were female and 22% were male. In total, we found 8.4% of major abnormalities. On MRI head scan without MRA analysis, we found 50.7% of normal finding, 47.1% of minor abnormalities and 2.2% of major abnormalities. On MRA scan, we found we found 52.9% of normal finding, 40.9% of minor abnormalities, and 6.2% of major abnormalities.
CONCLUSION: Our study demonstrates a low but important diagnostic yield of MRI and MRA examination for patients with non-acute headache without focal neurological abnormalities.
“…20 Nonspecific white matter abnormalities are foci of ischemic demyelination and gliosis. 26 These abnormalities are detected best as hyperintense foci on T2-weighted sequences. In this study, nonspecific white matter abnormalities were found in 42 of 127 (10%) patients who underwent brain MRI.…”
Introduction.The aim was to describe the findings on magnetic resonance imaging (MRI) in children with headache. Population and methods. Retrospective review of the medical records of patients who were admitted to our pediatric outpatient neurology clinics with the complaint of headache between January 2013 and December 2014. Results. A total of 478 patients (273 female, 205 male) were admitted with the complaint of headache. The types of headache were migraine in 218 (45.6%), tension-type in 159 (33.3%), secondary in 39 (8.2%) and unspecified headaches in 62 (13%) patients. Brain MRI was performed in 407 (85%) patients and revealed cerebral abnormalities in 128 (31.4%) patients; 5 patients had cerebral abnormalities relevant with headache, including tumors. Amongst the others 123 patients, the most common findings were 42 cases (10%) of nonspecific white matter abnormalities, 17 cases (4%) of enlarged perivascular spaces, 17 cases (4%) of arachnoid cyst, 16 cases (3.9%) of asymmetric ventricles, 12 cases (2.9%) with Chiari type I and cerebellar tonsillar ectopia. Also, 17 (4.1%) patients had extra-cerebral MRI abnormalities including sinusitis, mucosal thickening and retention cysts of sinuses. Conclusions. In this study, the contribution of brain MRI in the diagnosis and management of the children with headache was still low.
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