Journals / Çocuk Acil ve Yoğun Bakım Dergisi / 2019 / Cilt: 6 - Sayı: 1

Comparison of Ultrasound Guided Optic Nerve Sheath Diameter Measurements with Other Cranial Imaging Methods (Cranial Computed Tomography and Magnetic Resonance Imaging) in Pediatric Intensive Care Patients

Çocuk Yoğun Bakım Hastalarında Ultrasonografi ile Yapılan Optik Sinir Kılıf Çapı Ölçümlerinin Diğer Kraniyal Görüntüleme Yöntemleriyle (Kraniyal Bilgisayarlı Tomografi ve Manyetik Rezonans Görüntüleme) Karşılaştırılması

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⚡ TL;DR(Too Long; Didn't Read)

Our findings suggest that US may be a useful, reliable and cost-effective method for assessment and clinical follow-up of increased ICP in intubated pediatric intensive care unit patients.

📌 3 Key Takeaways

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Objective & Hypothesis:Introduction: Optic nerve sheath diameter (ONSD) measurements aid in diagnosis of increased intracranial pressure (ICP).
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Key Findings & Data:Lately, ONSD measurements via ultrasound (US) are getting popular as an alternative method due to the ease of performance at the bedside and repeatability.
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Conclusion & Impact:Our findings suggest that US may be a useful, reliable and cost-effective method for assessment and clinical follow-up of increased ICP in intubated pediatric intensive care unit patients.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Introduction: Optic nerve sheath diameter (ONSD) measurements aid in diagnosis of increased intracranial pressure (ICP). Computed tomography (CT) and magnetic resonance imaging (MRI) are commonly used modalities for detecting ICP. Lately, ONSD measurements via ultrasound (US) are getting popular as an alternative method due to the ease of performance at the bedside and repeatability. Our study objective was to investigate whether US measurements correlated with CT/MRI counterparts. Methods: This was a single-center, prospective study. All intubated patients aged 1 month-18 years with a cranial CT/MRI for any indications, who could be scanned ultrasonographically, were included after parental consent. Optic nerve US was performed by a single investigator. CT/MRI ONSDs were measured by a neuro-radiologist. Data obtained from US and CT/MRI scans were compared. Results: A total of 94 different measurements were obtained. The mean ONSD in US and CT was 4.56±0.66 cm and 4.65±0.72cm on the right side, whereas the mean left ONSD was 4.52±0.63 cm and 4.46±0.67 cm, respectively (p=0.4). Correlation coefficient for right ONSD was r=0.448 (p=0.002) while it was r=0.448 (p=0.001) for left ONSD. Both CT and US measurements showed a linear increase, and the correlation between them was moderate. A subgroup of 8 patients who had less than 5 hours between their central imaging and US scan showed strong correlation between measurements for both right and left ONSD [r=0.774, (p=0.024) and r=0.811 (p=0.014), respectively]. Conclusion: There was a correlation between US and CT/MRI ONSD measurements in our study. The correlation was stronger when the time interval was less than 5 hours between measurements. Our findings suggest that US may be a useful, reliable and cost-effective method for assessment and clinical follow-up of increased ICP in intubated pediatric intensive care unit patients.

Özet

Giriş: Optik sinir kılıfı çapı (OSKÇ) kafa içi basınç artışı (KİBA) tanısının koyulması için ölçülür. Bilgisayarlı Tomografi (BT) ve Manyetik Rezonans görüntüleme (MRI) KİBA tespiti için sık kullanılır. Son zamanlarda ultrasonografik (US) yaklaşımla yapılan OSKÇ ölçümleri yatak başında kolayca yapılabilmesi ve sık tekrarlanabilir olması nedeniyle seçenek bir yöntem olarak öne çıkmaktadır. Çalışmamızda US ile yatak başında yapılan OSKÇ ölçümlerinin BT ve MRI ile yapılan ölçümlerle uyumu araştırıldı. Yöntemler: Araştırmamız tek merkezli, ileriye yönelik bir çalışmadır. Herhangi bir sebeple beyin BT/MRI’sı çekilmiş olup US uygulanabilen tüm 1 ay-18 yaş entübe hastalar, aile onamı alınarak çalışmaya dahil edildi. Tek bir nöroradyolog tarafından ölçülen BT/MRI OSKÇ değerleri ile tek bir araştırmacı tarafından saptanan US değerleri karşılaştırıldı. Bulgular: Çalışmamızda toplam 94 ölçüm yapıldı. US ile sağ gözde ortalama OSKÇ 4,56±0,66 cm, sol gözde ise 4,52±0,63 cm idi. BT/ MRI ölçümleri ise sağda 4,65±0,72 cm, solda 4,46±0,67 cm idi. Sağ ve sol taraflı US ve BT/MRI ortalama ölçümleri arasında anlamlı fark yoktu (p=0,4). Sağ OSKÇ için BT ve US ölçümleri arasındaki korelasyon kat sayısı r=0,448 (p=0,002), sol OSKÇ için ise r=0,448 (p=0,001) olup, BT ve US ölçümlerinde korelasyon her iki göz OSKÇ için lineer artış göstermekte ve aralarında orta derecede korelasyon bulunmaktaydı. Santral görüntüleme ile US arasında geçen sürenin 5 saatin altında olduğu 8 olguda BT/MRI ve US ile yapılan OSKÇ ölçümleri arasındaki korelasyonun arttığı (sağ r=0,774, p=0,024: sol r=0,811, p=0,014) görüldü. Sonuç: Çalışmamızda entübe yoğun bakım hastalarında US ve BT/ MRI OSKÇ ölçümleri uyumlu bulundu. Görüntülemeler arasındaki zaman 5 saatin altında olduğunda uyum daha da artmakta idi. Yoğun bakım ünitelerinde entübe hastalarda KİBA’nın klinik takibinde US ile yapılan seri OSKÇ ölçümlerinin kullanılması; non-invazif, güvenilir maliyet etkin olabilecek bir yöntemdir

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Cite This Article

DADI, B., UYAR, E., ASADOV, R., GİRGİN, İ. F., EKİNCİ, G., ÖZTÜRK, M. N. Y. (2019). Comparison of Ultrasound Guided Optic Nerve Sheath Diameter Measurements with Other Cranial Imaging Methods (Cranial Computed Tomography and Magnetic Resonance Imaging) in Pediatric Intensive Care Patients. Çocuk Acil ve Yoğun Bakım Dergisi, Cilt: 6 - Sayı: 1, 1–6. https://ajindex.com/articles/190368

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