Three-Dimensional Constructive Interference in Steady State Sequences and Phase-Contrast Magnetic Resonance Imaging of Arrested Hydrocephalus

Elkafrawy, Fatma; Reda, Ihab S.; Elsirafy, Mohamed; Gawad, Mohamed Saied Abdel; Elnaggar, Ahmed; Razek, Ahmed Abdel Khalek Abdel

doi:10.1016/j.wneu.2016.10.140

Cited by 13 publications

(3 citation statements)

References 17 publications

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“…As described in other studies, thin-sliced and high resolution T2 sequences can visualise the defect in the floor of the third ventricle and PCI is a helpful diagnostic tool that can accurately measure and visualize CSF flow. [2][3][4]6,7,11,[15][16][17] This facilitates the detection of SV and helped us with the diagnosis in both cases. As surgical ventriculostomy does not seem sensible in patients with SV, an exact diagnosis is crucial.…”

Section: Discussionmentioning

confidence: 99%

Case report: Flattening of the tectal plate in obstructive hydrocephalus with auto-ventriculostomy

Städt

Holtmannspötter

Schwab³

et al. 2021

Neuroradiol J

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Background Obstructive hydrocephalus in adulthood can be caused by stenosis in the aqueductal area. Chronic changes lead to a dilatation of the lateral ventricles and ballooning of infratentorial recesses. In rare cases a rupture of the floor of the third ventricle (so-called spontaneous ventriculostomy) has been described in the literature. Case presentation: We present two cases of chronic obstructive hydrocephalus due to aqueductal stenosis in adult patients. Magnetic resonance imaging included phase-contrast-imaging and revealed significant flow through the floor of the third ventricle in keeping with spontaneous ventriculostomy. In addition to other typical changes associated with chronic hydrocephalus, a distinct flattening of the tectal plate could be identified in one case. Conclusion We present two cases of spontaneous ventriculostomy in patients with chronic hydrocephalus. To our knowledge, flattening of the tectal plate has not yet been described in the literature and may be caused by continuous cerebrospinal fluid-pulsation.

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Section: Discussionmentioning

confidence: 99%

Case report: Flattening of the tectal plate in obstructive hydrocephalus with auto-ventriculostomy

Städt

Holtmannspötter

Schwab³

et al. 2021

Neuroradiol J

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“…However, PC‐MRI findings do not provide high‐resolution morphological information. PC‐MRI and 3D constructing imaging in the steady state (3D‐CISS) have been reported to be useful techniques for examinations of patients with arrested hydrocephalus, AS, and endoscopic third ventriculostomy (ETV) . Time‐resolved 3D MR velocity mapping that requires no additional high‐resolution morphological sequences has been reported to be useful for the diagnosis of hydrocephalus and the assessment of AS before and after ETV .…”

Section: Introductionmentioning

confidence: 99%

Visualization of cerebrospinal fluid dynamics using multi‐spin echo acquisition cine imaging (MUSACI)

Wada

Tokunaga

Togao

et al. 2018

Magnetic Resonance in Med

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“…[20][21][22][23] These techniques can also be used in the MR imaging of hydrocephalus. 24,25 At our center, dedicated imaging protocols for the evaluation of patients with hydrocephalus include high-resolution imaging. Such imaging is typically through the cerebral aqueduct, though imaging tailored to the evaluation of the ventriculostomy tubes is also available to the clinician.…”

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confidence: 99%

High-Resolution MRI for Evaluation of Ventriculostomy Tubes: Assessment of Positioning and Proximal Patency

Blitz

Huynh²,

Bonham³

et al. 2020

AJNR Am J Neuroradiol

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BACKGROUND AND PURPOSE: Imaging evaluation of ventriculostomy tubes, despite the frequency of malfunction, has remained inadequate due to the absence of a systematic way of assessing the catheter itself. In this retrospective review, we assessed the utility of high-resolution 3D MR imaging techniques, including CISS and volumetric interpolated breath-hold examination sequences, in the evaluation of ventriculostomy catheters. MATERIALS AND METHODS:We performed a retrospective review of 23 clinical MR imaging cases of shunted hydrocephalus spanning a 3-year period, all depicting ventriculostomy catheters. The MR imaging examinations included isotropic CISS and volumetric interpolated breath-hold examination sequences performed with and without contrast. These were independently evaluated by 2 neuroradiologists with respect to the catheter course, side hole position, relationship of the side holes to the ventricles, patency, and the presence or absence of intraluminal debris. RESULTS:The catheter tip was best seen on isotropic CISS sequences reformatted in an oblique plane, and side holes were visualized as CSF signal defects along the catheter wall in 10/23 (43%) cases. The relationship of the catheter side holes to the ventricles was seen in 47% of cases and was best visualized on the coronal CISS sequences. Catheter patency was confirmed in 12/23 (52%) cases, while the other 48% were notable for T2 hypointense filling defects compatible with luminal obstruction. Enhancement of some of these filling defects on imaging is suggestive of choroid plexus ingrowth rather than debris.CONCLUSIONS: High-resolution 3D MR imaging using isotropic CISS sequences allows systematic evaluation of catheter positioning, patency, and potential etiologic differentiation of filling defects when shunt dysfunction is suspected.

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Three-Dimensional Constructive Interference in Steady State Sequences and Phase-Contrast Magnetic Resonance Imaging of Arrested Hydrocephalus

Cited by 13 publications

References 17 publications

Case report: Flattening of the tectal plate in obstructive hydrocephalus with auto-ventriculostomy

Case report: Flattening of the tectal plate in obstructive hydrocephalus with auto-ventriculostomy

Visualization of cerebrospinal fluid dynamics using multi‐spin echo acquisition cine imaging (MUSACI)

High-Resolution MRI for Evaluation of Ventriculostomy Tubes: Assessment of Positioning and Proximal Patency

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