Aorta and pulmonary artery segmentation using optimal surface graph cuts in non-contrast CT

2018 ◽  
Author(s):  
Zahra Sedghi Gamechi ◽  
Marleen de Bruijne ◽  
Andres M. Arias-Lorza ◽  
Jesper Holst Pedersen
Keyword(s):  
Pulmonary Artery ◽  
Graph Cuts ◽  
Surface Graph ◽  
Optimal Surface ◽  
Contrast Ct

scholarly journals Assessment of fully automatic segmentation of pulmonary artery and aorta on non‐contrast CT with optimal surface graph cuts

2021 ◽  
Author(s):  
Zahra Sedghi Gamechi ◽  
Andres M. Arias‐Lorza ◽  
Zaigham Saghir ◽  
Daniel Bos ◽  
Marleen Bruijne
Keyword(s):  
Pulmonary Artery ◽  
Automatic Segmentation ◽  
Graph Cuts ◽  
Surface Graph ◽  
Optimal Surface ◽  
Fully Automatic ◽  
Contrast Ct

scholarly journals Carotid Artery Wall Segmentation in Multispectral MRI by Coupled Optimal Surface Graph Cuts

2016 ◽  
Vol 35 (3) ◽  
pp. 901-911 ◽  
Author(s):  
Andres M. Arias-Lorza ◽  
Jens Petersen ◽  
Arna van Engelen ◽  
Mariana Selwaness ◽  
Aad van der Lugt ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Graph Cuts ◽  
Artery Wall ◽  
Carotid Artery Wall ◽  
Surface Graph ◽  
Optimal Surface ◽  
Multispectral Mri

Bubble study as a medium of contrast for computerized tomography coronary angiography. (Preprint)

2020 ◽  
Author(s):  
Vijay Shah ◽  
Justyn Huang
Keyword(s):  
Pulmonary Artery ◽  
Diagnostic Yield ◽  
Negative Contrast ◽  
Hounsfield Unit ◽  
Hounsfield Units ◽  
Computed Tomographic ◽  
Invasive Test ◽  
Clinical Difference ◽  
Contrast Ct ◽  
Scan Protocol

BACKGROUND Computed tomographic coronary angiogram (CTCA) is a non-invasive test with a negative predictive value of nearly 100% for the detection of coronary artery study. While diagnostic yield of a dedicated CTCA with bubble contrast is not yet evaluated OBJECTIVE To assess the diagnostic performance of injected bubble contrast and ability to measure difference in hounsfield units and use it as a "negative contrast" in computed tomographic METHODS This is a single center, single patient study. Baseline acquisition of a non-contrast CT scan was acquired to get hounsfield unit count in the aorta and pulmonary artery- (Calcium scan protocol) 1.4 mGy (19.5 mGy/cm). Secondly, Echo contrasts (Definity) - 5mls was injected and an echocardiogram confirmed filling in the aortic region. Finally, bubble contrast (1ml air, 8mls water and 1mls blood was drawn up and agitated through a 3 way tap) - was injected, a timing run was initiated to calculate for the bubbles to opacity the pulmonary artery. The same scan protocol was used– 1.4 mGy (19.5 mGy/cm). RESULTS Hounsfield units’ difference in the aorta and pulmonary artery from baseline compared to echo contrast and bubble contrast were not significant. CONCLUSIONS We believe this is the first ever recorded case to use bubbles as CT contrast. While results were not significant, secondary to small volume of bubbles injected. Further research needs to be implemented to assess clinical difference with amount of bubbles and volume required. CLINICALTRIAL Single centre study

scholarly journals Deep-learning strategy for pulmonary artery-vein classification of non-contrast CT images

2017 ◽  
Author(s):  
P. Nardelli ◽  
D. Jimenez-Carretero ◽  
D. Bermejo-Pelaez ◽  
M.J. Ledesma-Carbayo ◽  
Farbod N. Rahaghi ◽  
...  
Keyword(s):  
Deep Learning ◽  
Pulmonary Artery ◽  
Learning Strategy ◽  
Ct Images ◽  
Contrast Ct

scholarly journals Rasmussen's Aneurysm Associate With Pulmonary Artery Vascular Malformation Presented With Haemoptysis

KYAMC Journal ◽  
2019 ◽  
Vol 10 (3) ◽  
pp. 168-170
Author(s):  
Khaleda Parvin Rekha ◽  
Umme Iffat Siddiqua ◽  
Md Mofazzal Sharif ◽  
Md Musharraf Husain ◽  
Mohammad Abdus Salam
Keyword(s):  
Pulmonary Artery ◽  
Ct Scan ◽  
Vascular Malformation ◽  
Left Lung ◽  
Lower Lobe ◽  
Low Grade ◽  
Imaging Department ◽  
Increased Risk ◽  
Risk Of Rupture ◽  
Contrast Ct

Rasmussen's aneurysm is an inflammatory pseudo-aneurysmal dilatation of a branch of pulmonary artery associated with a cavitary lung lesion. Like any aneurysm, a Rasmussen's aneurysm is at increased risk of rupture and bleeding into the lungs. A 52 years old male presented with low-grade fever and haemoptysis, chest x-ray revealed a well margined nodular shadow with calcifications in mid zone of left lung associated with ipsilateral upper zone fibrosis and bronchiectasis. The patient had past history of pulmonary tuberculosis eight years back. For characterization of left pulmonary nodule the patient was referred to radiology and Imaging department and contrast CT scan of chest was done. Contrast CT scan of chest with reformat MIP pulmonary angiogram revealed a small pulmonary artery vascular malformation in lateral basal segment of lower lobe of left lung associated with left upper lobar cavitating lesion with fibrosis, traction bronchiectasis and Rasmussen's aneurysm arising from upper lobar apical segmental pulmonary artery. Early surgical or angiographic interventions with endovascular embolization are recommended once it be clearly diagnosed. KYAMC Journal Vol. 10, No.-3, October 2019, Page 168-170

Automatic urban modeling using volumetric reconstruction with surface graph cuts

2013 ◽  
Vol 37 (7) ◽  
pp. 896-910 ◽  
Author(s):  
Ignacio Garcia-Dorado ◽  
Ilke Demir ◽  
Daniel G Aliaga
Keyword(s):  
Graph Cuts ◽  
Urban Modeling ◽  
Surface Graph ◽  
Volumetric Reconstruction

scholarly journals Carotid Artery Lumen Segmentation in 3D Free-Hand Ultrasound Images Using Surface Graph Cuts

2013 ◽  
pp. 542-549 ◽  
Author(s):  
Andrés M. Arias Lorza ◽  
Diego D. B. Carvalho ◽  
Jens Petersen ◽  
Anouk C. van Dijk ◽  
Aad van der Lugt ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Graph Cuts ◽  
Ultrasound Images ◽  
Surface Graph ◽  
Lumen Segmentation
Sign in / Sign up

Export Citation Format

Share Document