Role of 3D SPACE sequence and susceptibility weighted imaging in the evaluation of hydrocephalus and treatment-oriented refined classification of hydrocephalus

Chellathurai, Amarnath; Subbiah, Komalavalli; Ajis, Barakath Nisha Abdul; Balasubramaniam, Suhasini; Gnanasigamani, Sathyan

doi:10.4103/ijri.ijri_161_18

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…In agreement our study, some researchers (9) The 3D SPACE sequence has been proposed as rapid and most efficient sequence for evaluating hydrocephalus (9) this is because of their effectiveness in demonstrates the morphologic features of hydrocephalus (11) .…”

Section: Discussionsupporting

confidence: 83%

Role of MRI CSF Flowmetry in Evaluation of Hydrocephalus in pediatric patients with Correlation between thin cuts T2, heavy T2 and Phase contrast.

Gamal

elsheikh²,

sameeh³

2022

Benha Medical Journal

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Background and Aim: flow-sensitive MRI techniques have been applied to quantitatively and qualitatively assess CSF flow dynamics to discriminate between communicating and noncommunicating hydrocephalus. So, we aimed to Correlate between thin cuts T2 ,3D-heavy T2 {CISS, sampling perfection with application-optimized contrasts using different flip angle evolutions (SPACE) with variable flip angle mode (VFAM) & constant angle} & phase contrast (PC) Sequences in pediatric hydrocephalus Patient & methods: 20 Patients with age below 18yrs old with evidence of hydrocephalic changes by clinical examination and by previous U/S,CT or MR scan with ventriculomegaly were included. 2D-T2-TSE, 3D-heavy T2 & PC-MRI were analyzed qualitatively by evaluating the capabilities of visualization of the obstructive pathology, overall image quality, severity of artifacts, and delineation of the CSF pathways. Results:showed that 3D heavily T2WI were superior to T2-TSE, 3D-SPACE showed fewer artifacts than 3D-CISS or T2-TSE sequences. 3D-SPACE VFAM is considered as a highly accurate alternative to PC-MRI for physiological and morphological evaluation of aqueductal patency compared to T2-TSE. Conclusion: 3D heavily T2 sequences are necessary for the assessment of CSF pathways in patients with hydrocephalus when compared with T2-TSE. 3D-SPACE VFAM is considered as a highly accurate alternative to PC-MRI for physiological and morphological evaluation of aqueductal patency.

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Section: Discussionsupporting

confidence: 83%

Role of MRI CSF Flowmetry in Evaluation of Hydrocephalus in pediatric patients with Correlation between thin cuts T2, heavy T2 and Phase contrast.

Gamal

elsheikh²,

sameeh³

2022

Benha Medical Journal

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Magnetic resonance imaging brain sequences in pediatrics

Kamble¹

2021

KPJ

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There are various pediatric magnetic resonance imaging (MRI) protocols followed in institutes and by individual radiologists, determined by the disease process and the indication for imaging, to narrow down the differential diagnosis. Most times, it is beneficial to modify protocols when the scans are being done, based on the findings seen on initially acquired sequences. This is particularly useful in pediatric patients considering most of them are scanned either under sedation or general anesthesia, and repeat scans will be cumbersome. In this particular review article, we are going to discuss appropriate MRI sequences in scanning pediatric brains and the need for rapid MRI sequences. This is of immense importance as MRI in pediatric patients poses challenges both to radiologists and technologists. Consequently, appropriate MRI protocols should be set to avoid repeat studies.

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To Study the Role of Limited Sequence Magnetic Resonance Imaging in Assessment of Children With Hydrocephalus.

Subramanian

Rajeshkannan

Moorthy

et al. 2021

IJAR

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Aim: To evaluate the role of limited sequence MRI (LS MRI) in diagnosing obstructive from nonobstructive hydrocephalus for treatment planning correlating with surgical findings and in follow up cases of shunt treated hydrocephalus to predict the candidate requires revision surgery correlating with final treatment. Materials and Methods: A total of 235 cases were included in the study underwent limited sequence MRI, 121 cases were evaluated for diagnosing obstructive from nonobstructive hydrocephalus out of which 106 cases underwent surgery were correlated with surgical findings and 114 were symptomatic follow up cases evaluated for need of revision surgery. Diagnostic measures such as sensitivity, specificity, PPV, NPV and accuracy were calculated. A p value of <0.05 was considered to be statistically significant. Results: Obstruction was seen in 81 out of the 106 cases who underwent surgery. MRI showed obstruction in 72(88.9%) and no obstruction in 9(11.1%) cases. Out of the 25 cases with no obstruction in surgery, MRI correctly excluded obstruction in 20(80%) cases. MRI misdiagnosed obstruction in 5(20%) cases. No statistically significant difference between the limited sequence MRI and surgery (p value of 0.424 Sensitivity 88.89%, Specificity 80% PPV 93.51%, NPV 68.97% and Accuracy 86.79%). Out of the total 114 follow up cases of hydrocephalus,47 underwent surgery and 67 cases were managed conservatively. MRI criteria predicted surgical candidate in 43(91.5%) and no surgery in 4(8.5%) patients. MRI criteria predicted nonsurgical management in 64 (95.5%) out of the 67 cases and the rest of 3 (4.5%) cases MRI over rated need for surgery. (Sensitivity:91.49% Specificity:95.52% PPV: 93.5% NPV 94.1% Accuracy :93.9%.) Conclusion: LS MRI has good accuracy in detecting an obstruction in paediatric hydrocephalus. In predicting revision surgery for follow-up cases of shunt-treated hydrocephalus, LS MRI has good accuracy.

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Role of 3D SPACE sequence and susceptibility weighted imaging in the evaluation of hydrocephalus and treatment-oriented refined classification of hydrocephalus

Cited by 4 publications

References 18 publications

Role of MRI CSF Flowmetry in Evaluation of Hydrocephalus in pediatric patients with Correlation between thin cuts T2, heavy T2 and Phase contrast.

Role of MRI CSF Flowmetry in Evaluation of Hydrocephalus in pediatric patients with Correlation between thin cuts T2, heavy T2 and Phase contrast.

Magnetic resonance imaging brain sequences in pediatrics

To Study the Role of Limited Sequence Magnetic Resonance Imaging in Assessment of Children With Hydrocephalus.

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