149. MAGNETIC RESONANCE IMAGING OF THE POSTERIOR CRANIAL FOSSA AND THE UPPER CERVICAL SPINE

1987 ◽  
Vol 22 (9) ◽  
pp. S37
Author(s):  
M. A. Mikhael ◽  
I. S. Ciric
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cervical Spine ◽  
Magnetic Resonance ◽  
Posterior Cranial Fossa ◽  
Upper Cervical Spine ◽  
Resonance Imaging ◽  
Upper Cervical ◽  
Cranial Fossa

scholarly journals Normal kinematics of the upper cervical spine during the Flexion–Rotation Test – In vivo measurements using magnetic resonance imaging

2011 ◽  
Vol 16 (2) ◽  
pp. 167-171 ◽  
Author(s):  
Hiroshi Takasaki ◽  
Toby Hall ◽  
Sadanori Oshiro ◽  
Shouta Kaneko ◽  
Yoshikazu Ikemoto ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cervical Spine ◽  
Magnetic Resonance ◽  
Upper Cervical Spine ◽  
Resonance Imaging ◽  
Rotation Test ◽  
In Vivo Measurements ◽  
Upper Cervical

scholarly journals Dynamic Kine Magnetic Resonance Imaging in Whiplash Patients and in Age- and Sex-Matched Controls

2009 ◽  
Vol 14 (6) ◽  
pp. 427-432 ◽  
Author(s):  
Karl-August Lindgren ◽  
Jyrki A Kettunen ◽  
Markku Paatelma ◽  
Raija HM Mikkonen
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cervical Spine ◽  
Magnetic Resonance ◽  
Proton Density ◽  
Upper Cervical Spine ◽  
Resonance Imaging ◽  
Motion Patterns ◽  
Alar Ligaments ◽  
Abnormal Movements ◽  
Upper Cervical

The multitude of symptoms following a whiplash injury has given rise to much discussion because of the lack of objective radiological findings. The ligaments that stabilize the upper cervical spine can be injured. Dynamic kine magnetic resonance imaging (dMRI) may reveal the pathological motion patterns caused by injury to these ligaments. To compare the findings and motion patterns in the upper cervical spine, 25 whiplash trauma patients with longstanding pain, limb symptoms and loss of balance indicating a problem at the level of C0–C2, as well as matched healthy controls were imaged using dMRI. Imaging was performed with an Intera 1.5 T (Philips Healthcare, USA) magnet. A physiotherapist performed the bending and rotation of the upper cervical spine for the subjects to ensure that the movements were limited to the C0–C2 level. An oblique coronal T2- and proton density-weighted sequence and a balanced fast field echo axial sequence were used. The movements between C0–C2 and the signal from the alar ligaments were analyzed. Contact of the transverse ligament and the medulla in rotation was seen in two patients. The signal from the alar ligaments was abnormal in 92% of the patients and in 24% of the control subjects (P<0.0001). Abnormal movements at the level of C1–C2 were more common in patients than in controls (56% versus 20%, P=0.028). Whiplash patients with longstanding symptoms had both more abnormal signals from the alar ligaments and more abnormal movements on dMRI at the C0–C2 level than controls.

Kinematic Magnetic Resonance Imaging of the Upper Cervical Spine Using a Novel Positioning Device

Spine ◽  
1999 ◽  
Vol 24 (19) ◽  
pp. 2046 ◽  
Author(s):  
Jari O. Karhu ◽  
Riitta K. Parkkola ◽  
Markku E. S. Komu ◽  
Martti J. Kormano ◽  
Seppo K. Koskinen
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cervical Spine ◽  
Magnetic Resonance ◽  
Upper Cervical Spine ◽  
Resonance Imaging ◽  
Upper Cervical ◽  
Positioning Device ◽  
Kinematic Magnetic Resonance Imaging

Giant glioependymal cyst in an infant

2011 ◽  
Vol 7 (2) ◽  
pp. 175-178 ◽  
Author(s):  
Ryoma Morigaki ◽  
Kiyohito Shinno ◽  
Kyong-Hon Pooh ◽  
Yoshinobu Nakagawa
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Cystic Mass ◽  
Posterior Cranial Fossa ◽  
Resonance Imaging ◽  
Truncal Ataxia ◽  
Glioependymal Cyst ◽  
Tela Choroidea ◽  
Cranial Fossa

The authors report the case of an infant with a giant glioependymal cyst. Although it has been suggested that these cysts originate from the tela choroidea, their origin remains controversial. This 35-month-old girl with truncal ataxia was referred to the authors' hospital. Magnetic resonance imaging revealed a giant cystic mass extending from the anterior to the posterior cranial fossa. Hydrocephalus was caused by obstruction of the sylvian aqueduct. Endoscopic fenestration of the cyst wall was performed. Histochemical and immunohistochemical staining identified the lesion as a glioependymal cyst. Magnetic resonance imaging performed 8 months later suggested that the cyst originated from the tela choroidea. At 5-year follow-up, there was no tumor recurrence and she had fully recovered. The origin of glioependymal cysts is discussed, and the authors suggest that their origin is the tela choroidea.

scholarly journals Imaging-Based Features of Headaches in Chiari Malformation Type I

Neurosurgery ◽  
2015 ◽  
Vol 77 (1) ◽  
pp. 96-103 ◽  
Author(s):  
Noam Alperin ◽  
James R. Loftus ◽  
Carlos J. Oliu ◽  
Ahmet M. Bagci ◽  
Sang H. Lee ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Chiari Malformation ◽  
Posterior Cranial Fossa ◽  
Type I ◽  
Intracranial Volume ◽  
Resonance Imaging ◽  
Chiari Malformation Type I ◽  
Intracranial Compliance ◽  
Cranial Fossa

Abstract BACKGROUND: Suboccipital cough-induced headaches are considered a hallmark symptom of Chiari malformation type I (CMI). However, non--Valsalva-related suboccipital headaches and headaches in other locations are also common in CMI. The diagnostic significance and the underlying factors associated with these different headaches types are not well understood. OBJECTIVE: To compare cranial morphology and hydrodynamics in 3 types of headaches in CMI to better understand the pathophysiological basis for the different headache characteristics. METHODS: Twenty-two cranial physiological and morphological measures were obtained with specialized magnetic resonance imaging scans from 63 symptomatic pretreated CMI patients, 40 with suboccipital headaches induced by Valsalva maneuvers (34 women; age, 36 ± 10 years), 15 with non--Valsalva-related suboccipital headaches (10 women; age, 33 ± 9 years), 8 with nonsuboccipital non--Valsalva-induced headaches (8 women; age, 39 ± 13 years), and 37 control subjects (24 women; age, 36 ± 12 years). Group differences were identified with the use of the 2-tailed Student t test. RESULTS: Posterior cranial fossa markers of CMI were similar among the 3 headache subtypes. However, the Valsalva-related suboccipital headaches cohort demonstrated a significantly lower intracranial compliance index than the non--Valsalva-related suboccipital headaches cohort (7.5 ± 3.4 vs 10.9 ± 4.9), lower intracranial volume change during the cardiac cycle (0.48 ± 0.19 vs 0.61 ± 0.16 mL), and higher magnetic resonance imaging--derived intracranial pressure (11.1 ± 4.3 vs 7.7 ± 2.8 mm Hg; P = .02). The Valsalva-related suboccipital headaches cohort had smaller intracranial and lateral ventricular volumes compared with the healthy cohort. The non--Valsalva-related suboccipital headaches cohort had reduced venous drainage through the jugular veins. CONCLUSION: Valsalva-induced worsening of occipital headaches appears to be related to a small intracranial volume rather than the smaller posterior cranial fossa. This explains the reduced intracranial compliance and corresponding higher pressure measured in CMI patients with headaches affected by Valsalva maneuvers.

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