68: Collaborative study on four-dimensional echocardiography for the diagnosis of fetal heart defects: The COFEHD study

Espinoza, Jimmy; Lee, Wesley; Romero, Roberto; Yeo, Lami; Rizzo, Giuseppe; Paladini, D.; Viñals, Fernando Nuez; Achiron, Reuven; Gindes, L.; Abuhamad, Alfred

doi:10.1016/j.ajog.2009.10.083

Cited by 27 publications

(41 citation statements)

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“…In case of active fetal movements, volume can be acquired using the 3D live mode (4D) facility rather than using the static 3D mode. This option has demonstrated its clinical value when reconstructing the fetal face 5 and/or the cardiac structures using the spatio-temporal-image correlation (STIC) technique [6][7][8][9] . Tonni et al 5 have demonstrated that 3DUS have enhanced the diagnostic accuracy in detecting cleft lip (CL) and cleft palate (CP) in a routine second trimester scan on low-risk pregnant women.…”

mentioning

confidence: 99%

Three-dimensional ultrasound in obstetrics practice: myth or reality?

Tonni¹,

Júnior²

2014

Rev. Bras. Ginecol. Obstet.

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Since the introduction of sonography into clinical practice, two-dimensional ultrasound (2DUS) has represented the standard application in obstetrics care. Nonetheless, technological advancement has brought to healthcare givers a new opportunity that is three-dimensional ultrasound (3DUS). Are there nowadays convincing evidence that 3DUS offer advantages over 2DUS and have gained recognized as well as well established role to justify its inclusion into routine obstetrics practice? The technological advancement reached by 3DUS warrant appropriate operator training program in order to acquire expertise to manage ultrasound applications and software. When this "goal" is reached, there is no doubt concerning the fact that one of the main advantages of 3DUS over 2DUS is represented by anatomic acquisition of a volume. Once a volume data set has been acquired, it can be sectioned on-line or transferred to an external personal computer for post-processing analysis. At this stage, "navigation" within the volume is possible, and operators can then freely sectioned or rendered the volume on-demand. This is of dramatic importance in teaching and training clinical setting. Furthermore, volume can be acquired on standardized plane at remote site even by inexperienced operator in 3DUS and send for expert consultation using telemedicine. Although stored volume data sets are large, up to 10 megabyte, they can be compressed to about 15 to 20% of the original file size and submitted via Digital Imaging and Communications in Medicine (DICOM) technology for off-line consultation without noticeable loss of details or image quality 1 . Moreover, volume data sets can be shared by expert on dedicated website and be used in multicenter studies while demonstrating a high sensitivity and reliability 2,3 . 3DUS with its applications allow operators a simultaneous and less time consuming (when compared with 2DUS) rendering of the anatomical landmarks in three orthogonal planes when using the multiplanar mode. In such case, the region of interest is displayed on the upper left quadrant on the ultrasound video equipment while the sagittal plane, the coronal and the axial are rendered in plane A, plane B and plane C, respectively. The planes obtained from the 3D volume are parallel and not oblique or at an angle, as is the case with conventional 2DUS. In addition, when comparing 2DUS vs. 3DUS studies of pathological cases, one of the most important advantages offered by "navigating" inside the volumes generated by 3DUS is the ability to follow the green "reference" dot that indicates the

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confidence: 99%

Three-dimensional ultrasound in obstetrics practice: myth or reality?

Tonni¹,

Júnior²

2014

Rev. Bras. Ginecol. Obstet.

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“…Alongside this, the volume datasets can be subjected to wavelet compression, thus reducing their size and further facilitating internet transfer. A recent collaborative study demonstrated that the average time required to upload or download STIC volume datasets into a dedicated server was 2 min (range: 1-3 min) [19] .…”

Section: How Feasible Is the Transfer Of Volumes?mentioning

confidence: 99%

“…Seven international centers with expertise in STIC ultrasonography uploaded normal and abnormal heart volumes for blind analysis. Ten percent of volume datasets studied had limited clinical value due to poor image quality, insufficient anatomical information or artifacts [19] . Some physicians only requested internet consultation to reconfirm normal cardiac anatomy, while others would confirm a suspected structural defect.…”

Section: Once a Volume Has Been Acquired And Transmitted Via The Intementioning

confidence: 99%

“…It has been shown that standardized analysis could be reproducible and that there is a learning curve for manipulation and analysis of the volume datasets [25][26][27] . The increasingly wide-spread use of postprocess software along with more uniform standards amongst experts can probably explain the recently reported excellent intra-observer, inter-observer, and intercenter agreement in the identification of fetal cardiac structures and final cardiac diagnosis [19] .…”

Section: Once a Volume Has Been Acquired And Transmitted Via The Intementioning

confidence: 99%

“…Although the median time required to analyze a volume acquired at a tertiary level was 6 min (range: 2-15 min) [19] , naturally, longer time spans may be necessary to reconstruct poorer-quality volume datasets. Such reconstruction and analysis takes longer than regular screening of the fetal heart by extended examination [2] .…”

Section: How Many Experts Are Ready and Willing To Carry Out Remote Dmentioning

confidence: 99%

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Current Experience and Prospect of Internet Consultation in Fetal Cardiac Ultrasound

Viñals¹

2011

Fetal Diagn Ther

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Objective: Internet consultation with volume ultrasound is one of the strategies studied to attempt to improve prenatal detection of congenital heart defects (CHD). Methods: This methodology is a form of telemedicine in which a volume block of the fetal heart (either static 3D or STIC volume dataset) is acquired by an operator (non-expert) and transmitted via internet for remote consultation. Naturally, this methodology is suitable for remote locations or those with less access to specialists able to confirm or rule out a prenatal diagnosis of CHD. Results: The use of internet consultation demonstrates that some intracardiac anomalies can be ruled out and others confirmed, thus enabling the parents to prepare for the likely outcome of the pregnancy and to modify the perinatal management. Conclusion: Internet consultation offers a good alternative for fetuses from more isolated locations with a high risk of CHD. Moreover, this methodology could become an interesting tool for distance learning and training.

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Referral ultrasound in fetal medicine: May telemedicine play a pivotal role?

Rizzo

Patrizi

2022

J of Clinical Ultrasound

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68: Collaborative study on four-dimensional echocardiography for the diagnosis of fetal heart defects: The COFEHD study

Cited by 27 publications

References 0 publications

Three-dimensional ultrasound in obstetrics practice: myth or reality?

Three-dimensional ultrasound in obstetrics practice: myth or reality?

Current Experience and Prospect of Internet Consultation in Fetal Cardiac Ultrasound

Referral ultrasound in fetal medicine: May telemedicine play a pivotal role?

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