scholarly journals P30.05: Fetal MRI and 2D ultrasound imaging of unilateral choanal atresia in case of progressive unilateral ventriculomegaly, hypertelorism and nasal hypoplasia

2007 ◽  
Vol 30 (4) ◽  
pp. 565-565
Author(s):  
J. Keunen ◽  
D. Chitayat ◽  
R. Windrim ◽  
S. Blaser
Keyword(s):  
Ultrasound Imaging ◽  
Choanal Atresia ◽  
Fetal Mri ◽  
2D Ultrasound ◽  
Nasal Hypoplasia

Ultrasound Imaging during Endovascular Abdominal Aortic Aneurysm Repair Using the Stentor Bifurcated Endograft

1997 ◽  
Vol 4 (3) ◽  
pp. 272-278 ◽  
Author(s):  
Torgrim Lie ◽  
Jan Lundbom ◽  
Staal Hatlinghus ◽  
Aage Grønningsaeter ◽  
Steinar Ommedal ◽  
...  
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Ultrasound Imaging ◽  
Abdominal Aortic Aneurysm Repair ◽  
Computed Tomographic ◽  
Postoperative Control ◽  
Abdominal Aortic ◽  
2D Ultrasound ◽  
Array Ultrasound

Purpose: To evaluate different ultrasound modalities during implantation and follow-up of endovascular grafts for abdominal aortic aneurysm (AAA) exclusion. Methods: Between February 1995 and May 1996, 18 patients (14 men; aged 49 to 80 years, mean 67) were treated with endovascular intervention for infrarenal AAA. Seventeen patients received Mialhe Stentor bifurcated grafts, while one patient was treated with a straight graft for pseudoaneurysm. During and after the implantation, 3.25- and 5-MHz annular array ultrasound probes were used for transabdominal visualization of the endograft. Intravascular ultrasound was applied in combination with angiography for postoperative control. Results: Intraprocedurally, transabdominal two-dimensional (2D) ultrasound successfully monitored guidewire passage from the groin into the main part of the bifurcated endograft for implantation of the second limb. All implantation procedures were technically successful, but four endoleaks were identified intraprocedurally by 2D ultrasound and angiography. One healed spontaneously, two were treated with endovascular techniques at 1 and 4 months, and the last leak was scheduled for repair when the patient died of probable myocardial infarction at 2 months. During follow-up, 2D ultrasound successfully visualized all the endografts; no endoleaks were found in up to 18 months of surveillance. Conclusions: Transabdominal ultrasound imaging could be valuable in bifurcated endograft deployment both for guiding guidewire insertion and for controlling wire position before the second graft limb is connected to the main graft. Provided that satisfactory visualization of the entire endograft can be obtained, ultrasound examination may possibly replace arteriography and computed tomographic scanning as a follow-up investigation.

scholarly journals A large amniocele through a fundal uterine defect diagnosed on 2D ultrasound imaging

2017 ◽  
Vol 8 (12) ◽  
pp. 776 ◽  
Author(s):  
Joshua Oluwafemi Aiyekomogbon ◽  
Ojah S.O. ◽  
Shinkafi S.M. ◽  
Agom B.
Keyword(s):  
Ultrasound Imaging ◽  
2D Ultrasound

3D biplane versus conventional 2D ultrasound imaging for internal jugular vein cannulation

2021 ◽  
Author(s):  
Harm J. Scholten ◽  
Michael I. Meesters ◽  
Leon J. Montenij ◽  
Erik H. M. Korsten ◽  
R. Arthur Bouwman ◽  
...  
Keyword(s):  
Internal Jugular Vein ◽  
Ultrasound Imaging ◽  
Jugular Vein ◽  
Internal Jugular Vein Cannulation ◽  
Vein Cannulation ◽  
2D Ultrasound

A Freehand 3D Ultrasound Imaging System Using Open-Source Software Tools with Improved Edge-Preserving Interpolation

2017 ◽  
pp. 1079-1098
Author(s):  
Mohammad I. Daoud ◽  
Abdel-Latif Alshalalfah ◽  
Falah Awwad ◽  
Mahasen Al-Najar
Keyword(s):  
Open Source ◽  
Ultrasound Imaging ◽  
Open Source Software ◽  
Interpolation Method ◽  
3D Ultrasound ◽  
Software Tools ◽  
Ultrasound Images ◽  
Edge Preserving ◽  
2D Ultrasound ◽  
Spatial Calibration

Ultrasound imaging is widely employed in various medical procedures. Most ultrasound procedures are performed with conventional 2D ultrasound systems, but visualizing the 3D anatomy using 2D ultrasound images is often challenging. This paper describes the use of open-source software tools to develop a freehand system for synthesizing high-quality 3D ultrasound volumes using electromagnetic tracking. In the proposed system, the spatial transformation between the 2D ultrasound images and the electromagnetic sensor attached to the ultrasound transducer was performed using an accurate spatial calibration method. A new interpolation method, called the edge-preserving distance-weighted (EPDW), is employed to reconstruct the 3D ultrasound volumes. The performance of the system is evaluated by performing a set of phantom experiments. The results showed that the reconstructed 3D ultrasound volumes have sub-millimeter accuracy. Moreover, the ultrasound volumes synthesized using the EPDW method demonstrated improved edge preservation compared with a previous interpolation method.

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