scholarly journals Unruptured Basilar Tip Aneurysm with Internal Septation: Coiling Implications?

2016 ◽  
Vol 2016 ◽  
pp. 1-3
Author(s):  
Ayman Khalil ◽  
Hong Kuan Kok ◽  
Mark Schembri ◽  
Paul Brennan ◽  
Mohsen Javadpour ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Anatomical Variation ◽  
Artery Aneurysm ◽  
Digital Subtraction ◽  
Resonance Imaging ◽  
Coil Embolisation ◽  
Basilar Artery Aneurysm ◽  
Basilar Tip Aneurysm ◽  
Magnetic Resonance Imaging Mri ◽  
Selection Of

An internal septum within a basilar artery aneurysm is an infrequent anomaly and is very rarely reported in the literature. We report a 62-year-old lady that was incidentally diagnosed with basilar tip aneurysm. Further imaging with magnetic resonance imaging (MRI) revealed internal septation within this aneurysm which was later confirmed with digital subtraction angiography (DSA). She underwent coil embolisation, which involved technical manipulation of the microcatheter and the balloon to enable coiling of each separate aneurysm compartment. We present this case to illustrate the effect of this anatomical variation on the selection of endovascular treatment strategy.

scholarly journals Serious myelopathy due to magnetic resonance imaging-occult arteriovenous fistula: Case report of petrous ridge dural arteriovenous fistula

2015 ◽  
Vol 21 (5) ◽  
pp. 609-612
Author(s):  
Hyun Jeong Kim ◽  
In Sup Choi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Arteriovenous Fistula ◽  
Dural Arteriovenous Fistula ◽  
Slow Flow ◽  
Digital Subtraction ◽  
Resonance Imaging ◽  
Progressive Myelopathy ◽  
Vascular Origin ◽  
Magnetic Resonance Imaging Mri

Background and purpose We present a case of magnetic resonance imaging (MRI)-occult intracranial dural arteriovenous fistula (DAVF) with serious cervical myelopathy and review the pathophysiological background. Summary of case A 61-year-old man had suffered from progressive neurological deterioration. He had demonstrated swollen spinal cord with diffuse enhancement and no dilated vascularity on MRI. Finally, digital subtraction angiography revealed DAVF at the petrous ridge and it was successfully treated by embolization. Conclusion A slow flow DAVF is not readily recognizable on MRI. Whenever a patient presents with unexplainable progressive myelopathy, a possibility of vascular origin has to be considered.

Parenchymal Perianeurysmal Cyst in the Brain: Case Report

Neurosurgery ◽  
2006 ◽  
Vol 58 (4) ◽  
pp. E788-E788 ◽  
Author(s):  
Lucia Benvenuti ◽  
Rolando Gagliardi ◽  
Fabio Scazzeri ◽  
Stefania Gaglianone
Keyword(s):  
Magnetic Resonance Imaging ◽  
Case Report ◽  
Magnetic Resonance ◽  
Digital Subtraction Angiography ◽  
Artery Aneurysm ◽  
Cyst Formation ◽  
Digital Subtraction ◽  
Resonance Imaging ◽  
Neurosurgical Department ◽  
The Right

Abstract OBJECTIVE AND IMPORTANCE: Parenchymal perianeurysmal cysts are rare, and only seven cases have been reported. We present a case report with a 30 month follow-up on this topic. The possible etiopathogenetic mechanisms of cyst formation are discussed. CLINICAL PRESENTATION: A 54-year-old man with a 5–month history of headache and a computed tomography scan showing a giant parenchymal cyst located in the right temporal lobe with a mural enhanced nodule was admitted to our neurosurgical department with the diagnosis of cystic brain tumor. Magnetic resonance imaging followed by digital subtraction angiography identified the enhancing nodule as a large right middle cerebral artery aneurysm. INTERVENTION: Surgical treatment was performed; the aneurysm was clipped and the cyst evacuated. Postoperative digital subtraction angiography confirmed the clipping of the aneurysm at the neck. Serial magnetic resonance imaging controls showed the permanent collapse of the cyst. CONCLUSION: Parenchymal perianeurysmal cysts are rare. In the presence of parenchymal cysts neighboring main vessels, the possibility of a perianeurysmal cyst should be considered. In regard to the etiopathogenetic mechanisms responsible for the cyst development, the action of multiple coexisting factors seems to be the most applicable.

Magnetic Resonance Imaging (MRI) and Digital Subtraction Angiography Investigation of Childhood Moyamoya Disease

2017 ◽  
Vol 32 (13) ◽  
pp. 1027-1034 ◽  
Author(s):  
Peiji Song ◽  
Jing Qin ◽  
Han Lun ◽  
Penggang Qiao ◽  
Anming Xie ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Digital Subtraction Angiography ◽  
Moyamoya Disease ◽  
Pediatric Population ◽  
Cerebral Arteries ◽  
Digital Subtraction ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
Angiographic Examination

Because digital subtraction angiography (DSA) is not an ideal angiographic examination for moyamoya disease in the pediatric population, magnetic resonance angiography (MRA) provides a noninvasive contrast-free angiographic examination; whereas magnetic resonance imaging (MRI) provides superior spatial resolution and soft-tissue contrast for lesion assessment. Ninety patients with moyamoya disease were examined by MRI and DSA to assess the distribution of lesions and their diagnostic agreement between modalities. MRI examination revealed 439 lesions. Punctate lesions were the most abundant, followed by patchy lesions. These lesions generally covered a smaller area than the abnormal-vascular corresponding brain parenchyma. Steno-occlusive changes at bilateral anterior, medial, and posterior cerebral arteries were identified by MRA and DSA. MRI showed moderate agreement in identifying lesions after steno-occlusive changes in anterior and medial cerebral arteries, and good agreement in posterior cerebral arteries; 6% to 11% of cases were misdiagnosed by MRA.

scholarly journals Bilateral subdiaphragmatic kidneys with right-sided renal malrotation

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Al Shaimaa Fathi Elshetry
Keyword(s):  
Magnetic Resonance Imaging ◽  
Anatomical Variation ◽  
Abdominal Ultrasound ◽  
Resonance Imaging ◽  
Renal Anomalies ◽  
Case Presentation ◽  
Renal Ectopia ◽  
Abdominal Magnetic Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
Radiological Examinations

Abstract Background The subdiaphragmatic kidney is a positional variant of the uncommon cephalad renal ectopia, whereas renal malrotation refers to the anomalous renal hilar position. Both anomalies are rare, possibly under-reported, discovered incidentally on radiological examinations since patients are often asymptomatic. Case presentation This case report presents a unique renal anatomical variation in a 71-year-old female patient. A bilateral subdiaphragmatic renal ectopia coupled with right-sided renal malrotation, discovered accidentally on abdominal ultrasound (US), and confirmed by abdominal magnetic resonance imaging (MRI). Conclusions The presented case of bilateral subdiaphragmatic kidneys associated with right-sided renal malrotation is rare and not previously described in the literature. Radiologists must be familiar with these renal anomalies that can be discovered on imaging performed for other indications. MRI can provide more anatomical data compared to US.

scholarly journals Magnetic Resonance Imaging as a Useful Tool for the Selection of Pharmacological and Surgical Treatment Options for Canine Hydrocephalus

2012 ◽  
Vol 56 (3) ◽  
pp. 389-391 ◽  
Author(s):  
Andrzej Pomianowski ◽  
Zbigniew Adamiak
Keyword(s):  
Magnetic Resonance Imaging ◽  
Surgical Treatment ◽  
Magnetic Resonance ◽  
Obstructive Hydrocephalus ◽  
Treatment Options ◽  
Pharmacological Therapy ◽  
Resonance Imaging ◽  
Mri Scans ◽  
Magnetic Resonance Imaging Mri ◽  
Selection Of

Abstract A group of 12 dogs, eight of small breeds and four of medium-sized breeds, were used in the study. Prior to the magnetic resonance imaging (MRI) scans, all dogs were subjected to neurological, laboratory, and electroencephalographic examinations, and trans-fontanel ultrasonography was additionally performed in two patients. The acquired obstructive hydrocephalus was diagnosed in two dogs, idiopathic obstructive hydrocephalus - in four patients, obstructive congenital hydrocephalus - in five dogs, and hydrocephalus ex vacuo- in one patient. Ten dogs were put under the pharmacological therapy, and in two patients the condition was treated surgically. MRI proved to be a valuable tool that supports selection of the appropriate pharmacological and surgical treatment. MRI scans also appear to be useful in monitoring an effectiveness of the applied form of treatment.

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