Comparison between 3-dimensional cranial ultrasonography and conventional 2-dimensional cranial ultrasonography in neonates: impact on reinterpretation

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Abstract

Purpose

The aim of this study was to evaluate impact of 3-dimensional cranial ultrasonography (3DUS) on reinterpretation of cranial ultrasonography images in neonates in comparison with 2-dimensional cranial ultrasonography (2DUS).

Methods

We retrospectively enrolled 50 young infants who simultaneously underwent both 2DUS and 3DUS scanning from February to March 2015. Two pediatric radiologists independently reviewed both scans for overall image quality on a 5-point scale. Five features were evaluated in both scans: the presence of germinal matrix hemorrhage (GMH), intraventricular hemorrhage (IVH), ventriculomegaly (VM), abnormality of periventricular echogenicity (PVE), and focal parenchymal lesions (FL). The concordance rate between the two scanning modes was calculated. The confidence level for each finding on a 3-point scale and the scanning time were compared between the two scanning modes. Interobserver agreement was evaluated using kappa statistics.

Results

Both scans demonstrated similar overall image quality in terms of reinterpretation (mean scores for 2DUS and 3DUS, 4.0±0.5 and 4.0±0.7 in reviewer 1, 3.9±0.6 and 4.0±0.8 in reviewer 2, respectively). GMH, IVH, VM, and FL showed perfect concordance, while PVE showed a concordance rate of 91.4% between the two modes by both reviewers. 3DUS was associated with a higher diagnostic confidence in the evaluation of GMH, IVH, and FL than 2DUS (P<0.05) for both reviewers. For PVE, 3DUS received a significantly higher confidence score than 2DUS from one of the reviewers. The mean scanning time for 2DUS and 3DUS was 92.75 seconds and 36 seconds, respectively. Interobserver agreement for qualitative scoring was almost perfect.

Conclusion

In reinterpretation, 3DUS showed very high concordance with 2DUS and a similar image quality. 3DUS also increased diagnostic confidence for several image findings and significantly decreased scan time.

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Most cited references 16

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Clinical utility of three-dimensional US.

D. Downey, A Fenster, J Williams (2015)

Three-dimensional (3D) ultrasonography (US) is rapidly gaining popularity as it moves out of the research environment and into the clinical setting. This modality offers several distinct advantages over conventional US, including 3D image reconstruction with a single pass of the US beam, virtually unlimited viewing perspectives; accurate assessment of long-term effects of treatment; and more accurate, repeatable evaluation of anatomic structures and disease entities. In obstetric imaging, 3D US provides a novel perspective on the fetal anatomy, makes anomalies easier to recognize, facilitates maternal-fetal bonding, and helps families better understand fetal abnormalities. Three-dimensional pelvic US allows volume data sets to be acquired with both transvaginal and transabdominal probes. Viewing multiple 3D power Doppler US images in a fast cine loop has proved useful in angiographic applications. Three-dimensional prostate US can help make accurate volume assessments for dosimetry planning or for estimating prostate-specific antigen levels. In breast imaging, 3D US has the capacity to demonstrate lesion margins and topography, thereby helping differentiate benign from malignant masses. Three-dimensional US can also help determine the need for biopsy and help facilitate needle localization and guidance during biopsy. With recent advances in computer technology and display techniques, 3D US will likely play an increasingly important role in medicine.

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State-of-the-art cranial sonography: Part 1, modern techniques and image interpretation.

Lisa Lowe, Zachary Bailey (2011)

In this era of radiation awareness, high-quality ultrasound is more important than ever. Although cranial sonography equipment has advanced greatly, application of modern techniques has not been utilized in a fashion commensurate to other cross-sectional modalities. This article will describe modern cranial sonography techniques, including the utility of linear imaging, use of additional fontanels, and screening Doppler imaging.

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Magnetic resonance imaging of the brain in premature infants during the neonatal period. Normal phenomena and reflection of mild ultrasound abnormalities.

J Oosting, H Lafeber, G Wezel-Meijler … (1998)

An MRI study was performed in 34 preterm infants who were clinically and neurologically normal and whose cranial ultrasound revealed no or only mild abnormalities. The postconceptional age at MRI varied between 30.6 and 37 weeks. The purpose of the study was to evaluate the significance of periventricular changes in signal intensity on MRI, comparing MRI with ultrasound. T1-weighted and T2-weighted images were assessed for changes in signal intensity of the periventricular white matter relative to the remainder of the cerebral hemispheric white matter. Cerebral MRIs of 13 postterm infants were additionally investigated. In all preterm infants small localized areas of high signal intensity on T1-weighted images and low signal intensity on T2-weighted images were seen adjacent to the frontal horns of the lateral ventricles. They faded with increasing age and were no longer seen one month after term in the group of postterm infants. The areas were considered normal before term age and probably represent remnants of the germinal matrix. Periventricular echodensities corresponded with a zone of changed signal intensity within the periventricular white matter on MRI. MRI signal change correlated with the presence and location of echodensities; the MRI signal changes slowly faded away after the echodensities disappeared.

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Author and article information

Journal

Journal ID (nlm-ta): Ultrasonography

Journal ID (iso-abbrev): Ultrasonography

Journal ID (publisher-id): USG

Title: Ultrasonography

Publisher: Korean Society of Ultrasound in Medicine

ISSN (Print): 2288-5919

ISSN (Electronic): 2288-5943

Publication date (Print): January 2018

Publication date (Electronic): 28 May 2017

Volume: 37

Issue: 1

Pages: 63-70

Affiliations

[1 ]Department of Radiology, Seoul National University Hospital, Seoul, Korea

[2 ]Department of Radiology, Chungbuk National University Hospital, Cheongju, Korea

[3 ]Department of Radiology, Seoul National University College of Medicine, Seoul, Korea

[4 ]Department of Radiology, Ewha Womans University Mokdong Hospital, Seoul, Korea

[5 ]Department of Radiology, Kyungpook National University Hospital, Daegu, Korea

Author notes

Correspondence to: Young Hun Choi, MD, Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea Tel. +82-2-2072-3608 Fax. +82-2-747-5781 E-mail: iater@ 123456snu.ac.kr

Author information

Yu Jin Kim http://orcid.org/0000-0001-9230-6477

Young Hun Choi http://orcid.org/0000-0002-1842-9062

Hyun Hae Cho http://orcid.org/0000-0002-4865-2601

So Mi Lee http://orcid.org/0000-0002-2073-8198

Ji Eun Park http://orcid.org/0000-0003-1305-0931

Jung-Eun Cheon http://orcid.org/0000-0003-1479-2064

Woo Sun Kim http://orcid.org/0000-0003-2184-1311

In-One Kim http://orcid.org/0000-0001-5800-3536

Article

Publisher ID: usg-17009

DOI: 10.14366/usg.17009

PMC ID: 5769951

PubMed ID: 28780784

SO-VID: 5dd738d9-3d04-4f4f-bbb1-64e849f25db6

License:

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

History

Date received : 7 February 2017

Date revision received : 25 May 2017

Date accepted : 28 May 2017

Comparison between 3-dimensional cranial ultrasonography and conventional 2-dimensional cranial ultrasonography in neonates: impact on reinterpretation

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Abstract

Purpose

Methods

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Conclusion

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The Dynamic Brain

Most cited references 16

Clinical utility of three-dimensional US.

State-of-the-art cranial sonography: Part 1, modern techniques and image interpretation.

Magnetic resonance imaging of the brain in premature infants during the neonatal period. Normal phenomena and reflection of mild ultrasound abnormalities.

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