Perianeurysmal edema as a predictive sign of aneurysmal rupture

2014 ◽  
Vol 121 (5) ◽  
pp. 1112-1114 ◽  
Author(s):  
Felix Hendrik Pahl ◽  
Matheus Fernandes de Oliveira ◽  
Nelson Paes Fortes Diniz Ferreira ◽  
Leonardo Lopes de Macedo ◽  
Roger Schmidt Brock ◽  
...  
Keyword(s):  
Resonance Imaging ◽  
Mri Findings ◽  
Intraluminal Thrombus ◽  
Aneurysmal Rupture ◽  
Aneurysm Wall ◽  
Incidental Aneurysms ◽  
Bleb Formation ◽  
Few Data ◽  
Clear Increase

Subarachnoid hemorrhage following intracranial aneurysmal rupture is a major cause of morbidity and mortality. Several factors may affect the probability of rupture, such as tobacco and alcohol use; size, shape, and location of the aneurysm; presence of intraluminal thrombus; and even the sex of the patient. However, few data correlate such findings with the timing of aneurysmal rupture. The authors report 2 cases of middle-age women with headache and MRI findings of incidental aneurysms. Magnetic resonance imaging showed evidence of surrounding parenchymal edema, and in one case there was a clear increase in edema during follow-up, suggesting a progressive inflammatory process that culminated with rupture. These findings raise the possibility that bleb formation and an enlargement of a cerebral aneurysm might be associated with an inflammatory reaction of the aneurysm wall resulting in perianeurysmal edema and subsequent aneurysmal rupture. There may be a temporal link between higher degree of edema and higher risk for rupture, including risk for immediate rupture.

The Syndrome of Spontaneous Intracranial Hypotension

Cephalalgia ◽  
1999 ◽  
Vol 19 (2) ◽  
pp. 80-87 ◽  
Author(s):  
CP O'Carroll ◽  
M Brant-Zawadzki
Keyword(s):  
Intracranial Hypotension ◽  
Spontaneous Intracranial Hypotension ◽  
Subdural Effusion ◽  
Resonance Imaging ◽  
Mri Findings ◽  
The Past ◽  
Downward Displacement ◽  
Prior Literature ◽  
Magnetic Resonance Imaging Mri

The authors report four cases of headache and other symptomatology related to the syndrome of intracranial hypotension. They were seen in a routine clinical practice over the past 3 years. The clinical features, magnetic resonance imaging (MRI) findings, and follow-up of these patients are described. Review of the prior literature on the topic is also included. All four patients presented with orthostatic headache syndrome. Three of the four demonstrated diffuse leptomeningeal thickening and enhancement on MRI studies. One subsequently developed a subdural effusion. One patient demonstrated downward displacement of the posterior fossa initially, which resolved on follow-up MRI scanning. Possible pathophysiologies of the syndrome are discussed.

Cerebral fat embolism: diffusion-weighted magnetic resonance imaging findings

2005 ◽  
Vol 46 (5) ◽  
pp. 528-533 ◽  
Author(s):  
C. W. Ryu ◽  
D. H. Lee ◽  
T. K. Kim ◽  
S. J. Kim ◽  
H. S. Kim ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
White Matter ◽  
Magnetic Resonance ◽  
B Value ◽  
Fat Embolism ◽  
Acute Stage ◽  
Resonance Imaging ◽  
Mri Findings ◽  
Diffusion Weighted

Purpose: To demonstrate the diffusion-weighted (DWI) magnetic resonance imaging (MRI) findings, and the follow-up MRI findings, of cerebral fat embolism in the acute stage. Material and Methods: The initial DWI and clinical findings of six patients with cerebral fat embolism were retrospectively evaluated. The finding of DWI with a b-value of 1000 s/mm2 (b = 1000) was compared with that of DWI with a b-value of 0 s/mm2 (b = 0). In three patients who underwent follow-up MRI, the interval change of the lesion on T2-weighted images was investigated. Results: The characteristic DWI finding of cerebral fat embolism in the acute stage was multiple, hyperintense, dot-like lesions disseminated in the brain. These lesions were distributed dominantly in the bilateral border-zone areas. Some lesions had an ancillary location including the cortex, deep white matter, basal ganglia, and cerebellum. The lesions were more intense and numerous in DWI (b = 1000) than in DWI (b = 0). The findings on the follow-up T2-weighted images were multiple confluent hyperintense lesions in the white matter with progression since the initial MRI. Conclusion: DWI could be a sensitive tool for detecting cerebral fat embolism in the acute phase. It is recommended that DWI be included in the initial evaluation of cerebral fat embolism with MRI.

Focal Aneurysm Wall Enhancement on Magnetic Resonance Imaging Indicates Intraluminal Thrombus and the Rupture Point

2019 ◽  
Vol 127 ◽  
pp. e578-e584 ◽  
Author(s):  
Toshinori Matsushige ◽  
Koji Shimonaga ◽  
Tatsuya Mizoue ◽  
Masahiro Hosogai ◽  
Yukishige Hashimoto ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Intraluminal Thrombus ◽  
Aneurysm Wall

Pregnancy-related sacroiliac joint findings in females with low back pain: a four-year magnetic resonance imaging follow-up study

2021 ◽  
pp. 028418512110171
Author(s):  
Rosa Marie Kiil ◽  
Bodil Al-Mashhadi Arnbak ◽  
Anna Zejden ◽  
Berit Schiøttz-Christensen ◽  
Oliver Hendricks ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Low Back Pain ◽  
Back Pain ◽  
Low Back ◽  
Resonance Imaging ◽  
Mri Findings ◽  
Follow Up Study ◽  
Over Time ◽  
Volume Score

Background Pregnancy-related pain may be associated with sacroiliac joint (SIJ) changes, detectable by magnetic resonance imaging (MRI). Purpose To analyze the prevalence and course of SIJ MRI and clinical findings in women referred with low back pain and relate these to pregnancy. Material and Methods A retrospective follow-up study from a longitudinally collected cohort comprising 328 women. Results Women reporting debut of pain in relation to a pregnancy (PP group) tended to have a higher baseline prevalence of all investigated MRI findings, cumulated positive SIJ tests, and a potential fulfilment of the spondyloarthritis diagnosis compared to remainders. The prevalence of subchondral bone marrow edema (BME), any SIJ MRI finding, and potential fulfilment of the spondyloarthritis diagnosis were significantly higher in the PP group compared to women who had not been pregnant. In the total study group, the prevalence of ≥1 MRI finding increased over the four-year study period from 34% to 47% ( P<0.001), driven by increasing prevalence of BME (25% to 32%; P=0.008) and fatty marrow deposition (FMD) (20% to 25%; P=0.020). In addition, the BME volume score increased. Over time, the PP group had persisting high prevalence of buttock pain and total MRI findings and their FMD volume score increased, but there were no between-group differences in MRI variables at follow-up. Conclusion Overall, the prevalence of MRI findings increased over time. Although the PP group had different clinical and SIJ MRI characteristics cross-sectional at baseline compared to remainders, longitudinal analyses revealed that these diminished over time.

scholarly journals Perioperative ultrasound imaging versus magnetic resonance imaging in management of lumbosacral spinal dysraphisms

2019 ◽  
Vol 34 (1) ◽  
Author(s):  
Wael Abd Elrahman Ali Elmesallamy
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Ultrasound Imaging ◽  
Resonance Imaging ◽  
University Hospitals ◽  
Mri Findings ◽  
True Negative ◽  
Magnetic Resonance Imaging Mri ◽  
Cystic Masses

Abstract Objectives The purpose of this study was to correlate lumbosacral spinal ultrasound (LUS) and magnetic resonance imaging (MRI) findings in patients with lumbosacral spinal dysraphisms to evaluate the value of LUS in diagnosis, intraoperative use, and during follow-up of those patients. Methods A total of 24 patients aged up to 6 years old were operated for lumbosacral spinal dysraphisms at the Neurosurgery Department of Zagazig University hospitals during the period from January 2017 to August 2018. All patients were investigated preoperatively, intraoperatively, and on follow-up by LUS to compare the data with preoperative and follow-up MRI of the spine. Results The median age was 11 months at the time of surgery. The most common anatomical description from the LUS study was thickened filum (18 cases). Using MRI findings as the standard reference, the sensitivity of LUS in detecting a thickened filum was 77.8% preoperatively and 62.5% postoperatively, with a specificity of 100%. The sensitivity and specificity of detecting conus level, solid masses, and cystic masses were 100%. Conclusions Lumbosacral spinal dysraphisms can be evaluated well by ultrasound imaging in age group up to 6 years old with 100% specificity (true negative) in comparison with MRI.

scholarly journals Anti-GFAP-antibody positive postinfectious acute cerebellar ataxia and myoclonus after COVID-19: a case report

2021 ◽  
Vol 14 ◽  
pp. 175628642110628
Author(s):  
Livia Asan ◽  
Stephan Klebe ◽  
Christoph Kleinschnitz ◽  
Mark Stettner ◽  
Martin Köhrmann
Keyword(s):  
Cerebellar Ataxia ◽  
Steroid Treatment ◽  
High Dose ◽  
Resonance Imaging ◽  
Mri Findings ◽  
Limb Ataxia ◽  
Acute Cerebellar Ataxia ◽  
Cerebellar Ataxias ◽  
Magnetic Resonance Imaging Mri

We present a case of acute cerebellar ataxia and myoclonus with detected anti-GFAP-antibodies in a patient recently recovered from COVID-19. Main symptoms consisted of acute gait and limb ataxia and myoclonus. The patient improved considerably upon treatment with high-dose intravenous (IV) steroids. While cerebrospinal fluid (CSF) and magnetic resonance imaging (MRI) findings were unremarkable, anti-GFAP-antibodies were detected in the patient’s serum and disappeared upon clinical remission at a 3-month follow-up. This case suggests that anti-GFAP-antibodies might be associated with some of the increasingly observed cases of postinfectious acute cerebellar ataxias in COVID-19 patients and aid in the diagnosis of this autoimmune complication. We recommend searching for these antibodies in serum and CSF in suspected cases. Early steroid treatment may prove beneficial for these patients.

Diffusion magnetic resonance imaging may provide prognostic information in osmotic demyelination syndrome: report of a case

2006 ◽  
Vol 47 (2) ◽  
pp. 208-212 ◽  
Author(s):  
E. Dervisoglu ◽  
I. Yegenaga ◽  
Y. Anik ◽  
E. Sengul ◽  
T. Turgut
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Clinical Status ◽  
Osmotic Demyelination Syndrome ◽  
Resonance Imaging ◽  
Mri Findings ◽  
Prognostic Information ◽  
Osmotic Demyelination ◽  
Adc Values

Hyponatremia and its rapid correction may cause osmotic demyelination syndrome (ODS) with damage to the pontine and extrapontine areas of the brain. The damage may become persistent or may regress and disappear during follow-up. We describe the case of a 35-year-old woman with chronic renal failure who was admitted to the emergency department with profound hyponatremia which was corrected rapidly after hemodialysis treatment. During follow-up, she developed quadriparesis and dysartria. Magnetic resonance imaging (MRI) demonstrated abnormalities characteristic of ODS in the pons as well as the basal ganglia with increased signal intensity on T2 and diffusion-weighted (DW) MRI and low apparent diffusion coefficient (ADC) values. After the sixth day, her clinical status improved progressively. Control MRI revealed rapid normalization of the ADC values during the first week and month parallel to the clinical improvement. However, the hyperintensities on T2-weighted images persisted. Four months later the MRI findings were completely normal. The close relationship between the ADC abnormality and the clinical status suggests that DW-MRI may be useful in predicting the prognosis of ODS.

The Role of Diffusion-weighted Magnetic Resonance Imaging in the Evaluation of Anterior Cruciate and Posterior Cruciate Ligament Tears

2019 ◽  
Vol 1 ◽  
pp. 97-100
Author(s):  
Vijinder Arora ◽  
Sonali Malik ◽  
Kunwarpal Singh
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Predictive Value ◽  
Cruciate Ligament ◽  
Resonance Imaging ◽  
Mri Findings ◽  
Conventional Mri ◽  
Anterior Cruciate

Objective: The objective of our study was to determine the role of diffusion-weighted (DW) magnetic resonance imaging (MRI) in diagnosing and differentiating between complete and partial anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) tears and to compare it with conventional MRI sequences. Materials and Methods: We conducted a prospective study for a period of 2 years from October 2017 to October 2019 on 30 patients with clinically suspected ACL/PCL injuries of the knee. MRI of the knee joint was performed using conventional, and DW sequences and the findings on both the sequences were assessed independently and compared with the intraoperative or follow-up MRI findings. Results: As per operative and follow-up MRI findings, the sensitivity and specificity of conventional MRI were 60% and 33.33% with a positive and negative predictive value of 47.37% and 45.45%, respectively. On the other hand, the sensitivity and specificity of DW MRI were 70.00% and 33.33% with a positive and negative predictive value of 51.22% and 52.13%, respectively. P = 0.417 was statistically not significant. Conclusion: According to our study, adding DW sequence to conventional MR sequences yielded comparable results in diagnosis and differentiation between complete and partial ACL and PCL tears.

Frühdiagnostik des Morbus Perthes: Wertigkeit von Skelettszintigraphie und Kernspintomographie im Vergleich zu Röntgenbefunden

1991 ◽  
Vol 30 (06) ◽  
pp. 265-271 ◽  
Author(s):  
J. Rütt ◽  
A. Linden ◽  
Kamilla Smolarz ◽  
E. Voth ◽  
H. Schicha ◽  
...  
Keyword(s):  
Bone Scintigraphy ◽  
Resonance Imaging ◽  
Radiological Findings ◽  
Mri Findings ◽  
Long Term Follow Up ◽  
Magnetic Resonance Imaging Mri ◽  
Conventional Radiology ◽  
Initial Results

The value of conventional radiology, bone scintigraphy and magnetic resonance imaging (MRI) in the early diagnosis of Legg-Calvé-Perthes disease (LCPD) was assessed. The initial results were compared with the clinical and radiological findings of long-term follow-up in 43 children. Radiological and scintigraphic examination resulted in a relatively high number of equivocal findings (16% and 10%, respectively). MRI findings were less equivocal (3%). Depending on whether such findings were classified as normal or as pathological, the diagnostic accuracy ranged as follows: radiography 88–93%, bone scintigraphy 88-91%, and MRI 97–99%. Therefore, MRI by itself seems to be sufficient to detect or exclude LCPD. The results of this study and the radiation exposure associated with radiography and scintigraphy raise the question whether MRI should be the diagnostic method of choice in patients with suspected LCPD.

Progressive Elbow Magnetic Resonance Imaging Abnormalities in Little League Baseball Players Are Common: A 3-Year Longitudinal Evaluation

2019 ◽  
Vol 48 (2) ◽  
pp. 466-472
Author(s):  
Joshua B. Holt ◽  
Jason M. Pedowitz ◽  
Philip H. Stearns ◽  
Tracey P. Bastrom ◽  
M. Morgan Dennis ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Natural History ◽  
Physical Examination ◽  
Resonance Imaging ◽  
Mri Findings ◽  
Baseball Players ◽  
Little League ◽  
History Of

Background: Prior studies have revealed magnetic resonance imaging (MRI) evidence of elbow pathology in single-season evaluation of competitive youth baseball players. The natural history of these findings and risk factors for progression have not been reported. Purpose: To characterize the natural history of bilateral elbow MRI findings in a 3-year longitudinal study and to correlate abnormalities with prior MRI findings, throwing history, playing status, and physical examination. Study Design: Cohort study; Level of evidence, 2. Methods: A prospective study of Little League players aged 12 to 15 years was performed. All players had preseason and postseason bilateral elbow MRI performed 3 years before this study. Players underwent repeat bilateral elbow MRI, physical examination, and detailed assessment of throwing history, playing status, and arm pain. Imaging was read by a blinded musculoskeletal radiologist and compared with prior MR images to assess for progression or resolution of previously identified pathology. Results: All 26 players who participated in the previous single-season study returned for a 3-year assessment. At the completion of the study, 15 players (58%) had dominant arm MRI pathology. Eighty percent (12/15 players) of MRI findings were new or progressive lesions. Players with postseason MRI pathology at the beginning of the study were more likely to have MRI pathology at the 3-year follow-up than players with previously normal postseason MRI ( P < .05), although 6 of the 14 players (43%) with previously normal MRI developed new pathology. Year-round play was a significant predictor of tenderness to elbow palpation ( P = .027) and positive MRI findings at 3 years ( P = .047). At the 3-year follow-up, 7 players (27%) reported having throwing elbow pain and 3 had required casting. Additionally, differences were noted in the dominant arm’s internal and external rotation in those that continued to play baseball ( P < .05). Conclusion: Dominant elbow MRI abnormalities are common in competitive Little League Baseball players. Year-round play imparts significant risk for progression of MRI pathology and physical examination abnormalities.

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