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(three dimensional ultrasonography three dimensional sonography three dimensional ultrasound 3D ultrasonography 3D sonography 3D ultrasound)
- Clinical application of 2D and 3D pelvic floor ultrasound of mid-urethral slings and vaginal wall mesh. [Journal Article]
- IUInt Urogynecol J 2019 May 11
- CONCLUSIONS: Pelvic floor ultrasound is the standard of care where imaging is available and utilised and is the only modality capable of reliably visualising mesh. It is clear that there are significant benefits and uses for the clinician for investigating complications of VWM or MUS; although many of the findings may be associated with clinical symptoms, some are incidental findings. Therefore, these scans should be performed by pelvic floor specialists with core competency in pelvic floor ultrasound and interpreted by those familiar with their significance, as an adjunct to patient history, examination and other investigations to assist in the most appropriate management plan for the patient. In addition, there is still a need for standardisation in terminology and measurement techniques, to allow for consistent and comparable reporting.
- Multimodality imaging for no contrast trans-catheter closure of an arteriovenous fistula. [Journal Article]
- CYCardiol Young 2019 Apr 30; :1-2
- A 6-year-old patient was diagnosed with an arteriovenous fistula in the neck region. Non-invasive three-dimensional imaging, including computed tomography and ultrasonography, was used for guidance o…
A 6-year-old patient was diagnosed with an arteriovenous fistula in the neck region. Non-invasive three-dimensional imaging, including computed tomography and ultrasonography, was used for guidance of percutaneous closure of the fistula and evaluation of the final outcome.
- High shear stress on the coronary arterial wall is related to computed tomography-derived high-risk plaque: a three-dimensional computed tomography and color-coded tissue-characterizing intravascular ultrasonography study. [Journal Article]
- HVHeart Vessels 2019 Apr 11
- Low wall shear stress (WSS) is associated with plaque formation. However, the relationship between WSS and coronary plaque vulnerability remains unclear. Therefore, this study aimed to clarify the in…
Low wall shear stress (WSS) is associated with plaque formation. However, the relationship between WSS and coronary plaque vulnerability remains unclear. Therefore, this study aimed to clarify the in vivo relationship between luminal WSS derived from three-dimensional (3D) computed tomography (CT) and plaque vulnerability within the coronary artery. Forty-three consecutive patients with ischemic heart disease and coronary stenotic lesions were enrolled and underwent coronary angiography and color-coded intravascular ultrasonography (iMap™) followed by multi-slice coronary CT angiography. CT-derived high-risk plaque was defined by specific CT characteristics, including low CT intensity (< 30 HU) and positive remodeling. The Student's t test, Mann-Whitney U test, χ2 test, repeated measures analysis of variance, and logistic and multiple regression were used for statistical analyses. CT-derived high-risk plaque (n = 15) had higher values of maximum and average shear stress than CT-derived stable plaque (474 ± 453 vs. 158 ± 138 Pa, p = 0.018; 4.2 ± 3.1 vs. 1.6 ± 1.2 Pa, p = 0.007, respectively). Compared with patients with CT-derived stable plaque, those with CT-derived high-risk plaque had a higher prevalence of necrotic and lipidic characteristics (44 ± 13 vs. 31 ± 11%, p = 0.001) based on iMap™. Multivariate logistic regression analysis showed that the average WSS and necrotic plus lipidic content were independent determinants of CT-derived high-risk plaque (average WSS: odds ratio 2.996, p = 0.014; necrotic plus lipidic content: odds ratio 1.306, p = 0.036). Our findings suggested that CT-derived high-risk plaque may coexist with high shear stress on the plaque surface.
- Three-dimensional visualisation of the fetal heart using prenatal MRI with motion-corrected slice-volume registration: a prospective, single-centre cohort study. [Journal Article]
- LctLancet 2019 Apr 20; 393(10181):1619-1627
- CONCLUSIONS: Standard fetal MRI with open-source image processing software is a reliable method of generating high-resolution 3D imaging of the fetal vasculature. The 3D volumes produced show good spatial agreement with ultrasound, and significantly improved visualisation and diagnostic quality compared with source 2D MRI data. This freely available combination requires minimal infrastructure, and provides safe, powerful, and highly complementary imaging of the fetal cardiovascular system.
- Magnetic Resonance Imaging (MRI) and Three-Dimensional Transvaginal Ultrasonography Scanning for Preoperative Assessment of High Risk in Women with Endometrial Cancer. [Journal Article]
- MSMed Sci Monit 2019 Mar 18; 25:2024-2031
- CONCLUSIONS: 3D-TVS is equivalent to MRI in predicting MI and CI. Combined MRI and 3D-TVS can improve the assessment sensitivity, and they are useful in optimizing individualized surgical procedures. The sensitivity of MRI for LNM prediction needs to be improved.
- Perforator navigation using color Doppler ultrasound and three-dimensional reconstruction for preoperative planning of optimal lateral circumflex femoral artery system perforator flaps in head and neck reconstruction. [Journal Article]
- JPJ Plast Reconstr Aesthet Surg 2019; 72(6):990-999
- CONCLUSIONS: Our algorithm using 3D-CDUS PN facilitates selection of optimal flap with better caliber and quality of the perforators and sufficient pedicle length for easy dissection.
- Comparison of ultrasound and digital mammography plus tomosynthesis in determining benign and malignant breast lesions using pathology as a gold standard, in 102 Chinese women. [Journal Article]
- HJHell J Nucl Med 2019 Jan-Apr; 22(1):36-42
- CONCLUSIONS: Breast US and 2D+3D mammography imaging play an additive role in identifying breast tumors. Intervention of the 2D+3D imaging technique helps recognize appearance and characteristics of breast lesions particularly in the women with a lesion measure of ≤1cm and those with dense breasts or breast microcalcifications.
- Quantitative assessment of two- and three-dimensional transthoracic and two-dimensional transesophageal echocardiography, computed tomography, and magnetic resonance imaging in normal canine hearts. [Journal Article]
- JVJ Vet Cardiol 2019; 21:79-92
- CONCLUSIONS: Measurements of LV, RV, and RA volumes via 3D TTE and LA volume and LV EF assessed by CTA compared best with CMR. Three-dimensional echocardiography had lower interrater and intrarater CV compared with 2D TTE.
- A pictorial view of the three-dimensional representation and comparative two-dimensional image orientation derived from computed tomography angiography in a dog with a patent ductus arteriosus. [Case Reports]
- JVJ Vet Cardiol 2019; 21:34-40
- Patent ductus arteriosus (PDA) occlusion is one of the more common cardiovascular procedures performed in dogs. Two-dimensional imaging has been the primary method of visualizing the PDA and is the b…
Patent ductus arteriosus (PDA) occlusion is one of the more common cardiovascular procedures performed in dogs. Two-dimensional imaging has been the primary method of visualizing the PDA and is the basis of its morphologic description. Transesophageal echocardiographic imaging has further characterized the three-dimensional (3D) variation in ductal morphology and shape (circle, oval). An accurate assessment of the shape and dimensions of a PDA in an individual dog is important when making decisions about definitive closure. Ductal measurements from angiography and echocardiography have not been found to be interchangeable, likely related in part to the static two-dimensional measurement of a 3D structure. We describe the use of computed tomography angiography (CTA) images imported into three software programs as a tool to provide 3D information about PDA anatomy including a comparison to images obtained from classic two-dimensional imaging modalities. These images provide an example of thorax and heart position related to transducer position and the orientation of image acquisition to demonstrate why measurements do not always compare. Additionally, 3D images are useful as a training tool and in the development of devices and training opportunities. Multidimensional imaging provides a unique representation of the 3D anatomical structure of the ductus arteriosus as displayed in these images from a dog with a PDA.
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- In vivo comparison of key quantitative parameters measured with 3D peripheral angiography, 2D peripheral quantitative angiography and intravascular ultrasound. [Journal Article]
- IJInt J Cardiovasc Imaging 2019; 35(2):215-223
- The aim of this study was to compare the measures of luminal stenosis between the two-dimensional (2D) and three-dimensional (3D) Quantitative Vessel Analysis (QVA) generated by CAAS QVA software and…
The aim of this study was to compare the measures of luminal stenosis between the two-dimensional (2D) and three-dimensional (3D) Quantitative Vessel Analysis (QVA) generated by CAAS QVA software and intravascular ultrasound (IVUS). Invasive contrast angiography is considered gold standard for diagnostic imaging and intervention in both coronary and peripheral arterial disease. However, it is based on 2D images depicting complicated 3D arterial anatomy. To overcome these limitations, 3D QVA has been developed to bridge the gap between 2D QVA and endovascular imaging. Thirty porcine femoral angiograms (common, profunda and superficial) with matching intravascular ultrasound (IVUS) pullbacks featuring variable degree of stenosis were analysed by 2D QVA, 3D QVA and quantitative IVUS. All 3 modalities provided similar data regarding the length of the investigated segment. Median lumen diameter was nearly identical in IVUS (4.69 mm) and in 3D QVA (4.76 mm) but quite a bit lower in 2D QVA (4.47 mm, Kruskal-Wallis test p = 0.1648). Lumen area measured in 2D QVA was lower than in IVUS and in 3D QVA. Lumen areas rendered by IVUS and 3D QVA were similar. Bland-Altman plots showed that the lowest differences were observed between IVUS and 3D QVA. IVUS and 3D QVA results were consistently higher than 2D QVA. 3D QVA is a useful surrogate of IVUS for precise luminal morphology measurements of peripheral arteries, rendering results that are much closer to IVUS than 2D QVA can provide.