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CT pulmonary hypertension

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https://www.readbyqxmd.com/read/28728932/the-complex-restrictive-pulmonary-function-pattern-clinical-and-radiological-analysis-of-a-common-but-previously-undescribed-restrictive-pattern
#1
Ryan D Clay, Vivek N Iyer, Dereddi Raja Reddy, Brittany Siontis, Paul D Scanlon
BACKGROUND: Most patients with restriction have a PFT pattern in which TLC, FVC and FEV1 are reduced to a similar degree. We call this pattern 'simple' restriction (SR). In contrast, we commonly observe a pattern in which FVC percent predicted (pp) is disproportionately reduced relative to TLCpp. We term this pattern 'complex restriction' (CR) and attempted to characterize its clinical, radiologic and physiologic features. METHODS: We reviewed PFTs of patients tested between November 2009 and June 2013 who had restriction (TLC<LLN)...
July 17, 2017: Chest
https://www.readbyqxmd.com/read/28701673/pulmonary-artery-diameter-predicts-lung-injury-after-balloon-pulmonary-angioplasty-in-patients-with-chronic-thromboembolic-pulmonary-hypertension
#2
Koichi Sugimoto, Kazuhiko Nakazato, Nobuo Sakamoto, Takayoshi Yamaki, Hiroyuki Kunii, Akiomi Yoshihisa, Hitoshi Suzuki, Shu-Ichi Saitoh, Yasuchika Takeishi
Balloon pulmonary angioplasty (BPA) has been an attractive strategy for chronic thromboembolic pulmonary hypertension (CTEPH), even though it occasionally causes lung injury. However, predictive factors of lung injury after BPA have not been established. Pulmonary artery (PA) dilatation is often observed in patients with pulmonary hypertension. We investigated the association between PA diameter and complications after BPA.The subjects were 19 CTEPH patients who underwent BPA. Patients were divided into two groups: patients with lung injury including asymptomatic lung infiltration on computed tomography (CT) images or mild hemoptysis (group L, n = 9) and no complications (group N, n = 10)...
July 13, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28666564/the-dilatation-of-main-pulmonary-artery-and-right-ventricle-observed-by-enhanced-chest-computed-tomography-predict-poor-outcome-in-inoperable-chronic-thromboembolic-pulmonary-hypertension
#3
Ryogo Ema, Toshihiko Sugiura, Naoko Kawata, Nobuhiro Tanabe, Hajime Kasai, Rintaro Nishimura, Takayuki Jujo, Ayako Shigeta, Seiichiro Sakao, Koichiro Tatsumi
BACKGROUND: Dilatation of the pulmonary artery and right ventricle on chest computed tomography images is often observed in patients with pulmonary hypertension. The clinical significance of these image findings has not been defined in chronic thromboembolic pulmonary hypertension. We investigated whether the pulmonary arterial and right ventricle dilatation was associated with poor outcome in chronic thromboembolic pulmonary hypertension. METHODS: This was a retrospective cohort investigation in 60 subjects with inoperable chronic thromboembolic pulmonary hypertension diagnosed consecutively between 1997 and 2010 at Chiba University Hospital...
June 12, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28648001/-ct-findings-and-clinical-features-of-takayasu-s-arteritis-with-pulmonary-artery-involvement
#4
R Lü, C L Yu, J Li, D D Wen, M W Zheng
Objective: To explore the CT findings of the Takayasu's arteritis (TA)with pulmonary artery (PA) involvement and its clinical significance. Methods: A total of 35 patients with TA involving the PA in Xijing Hospital from November 2007 to November 2016, 6 male cases, 29 female cases, the age was 15-52 (28±9) years old, were retrospectively collected and included in the study group (TA+ P group), meanwhile 40 patients with TA but not involving the pulmonary artery in this hospital from January 2015 to November 2016 were collected as control group, 5 male cases, 35 female cases, the age was 7-67 (28±12) years old...
June 20, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28647630/endovascular-repair-of-iatrogenic-iliocaval-fistula-causing-high-output-cardiac-failure-after-spine-fusion
#5
Seth Noland, Carlos A Espinoza, Jonathan D Dvorak, John D Rose, C Steven Powell
The case being presented is a 35-year-old female with a three-year history of progressive dyspnea and right-sided heart failure following spine surgery. Physical examination identified a continuous bruit in the lower abdomen radiating to her back which prompted further evaluation. Echocardiography showed normal left ventricle (LV) systolic function, enlarged right ventricle (RV), functional tricuspid regurgitation (TR) and moderate pulmonary hypertension. A computed tomography (CT) scan of the abdomen and pelvis demonstrated findings consistent with an arteriovenous fistula (AVF) between the right common iliac artery and the inferior vena cava (IVC)...
June 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28619955/pulmonary-artery-to-aorta-ratio-and-risk-of-all-cause-mortality-in-the-general-population-the-rotterdam-study
#6
Natalie Terzikhan, Daniel Bos, Lies Lahousse, Lennard Wolff, Katia M C Verhamme, Maarten J G Leening, Janine F Felix, Henning Gall, Hossein A Ghofrani, Oscar H Franco, M Arfan Ikram, Bruno H Stricker, Aad van der Lugt, Guy Brusselle
A pulmonary artery to aorta ratio (PA:A) >1 is a proxy of pulmonary hypertension. It is not known whether this measure carries prognostic information in the general population and in individuals with chronic obstructive pulmonary disease (COPD).Between 2003 and 2006, 2197 participants from the population-based Rotterdam Study (mean±sd age 69.7±6.7 years; 51.3% female), underwent cardiac computed tomography (CT) scanning with PA:A quantification, defined as the ratio between the diameters of the pulmonary artery and the aorta...
June 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28597764/microct-analysis-of-vascular-morphometry-a-comparison-of-right-lung-lobes-in-the-sugen-hypoxic-rat-model-of-pulmonary-arterial-hypertension
#7
Erin M Faight, Kostas Verdelis, Lee Zourelias, Rong Chong, Raymond L Benza, Kelly J Shields
Pulmonary arterial hypertension (PAH) is a rare disease characterized by significant vascular remodeling within the lung. Clinical computed tomography (CT) scans are routinely used to aid in PAH diagnosis. Animal models, including the Sugen-hypoxic rat model (SU/hyp), of PAH closely mimic human PAH development. We have previously used micro-computed tomography (microCT) to find extensive right lung vascular remodeling in the SU/hyp. We hypothesized that the individual right lung lobes may not contribute equally to overall lung vascular remodeling...
April 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28597752/withdrawal-of-long-term-epoprostenol-therapy-in-pulmonary-arterial-hypertension-pah
#8
George Calcaianu, Mihaela Calcaianu, Matthieu Canuet, Irina Enache, Romain Kessler
Once initiated for pulmonary arterial hypertension (PAH), epoprostenol treatment usually needs to be delivered for an indefinite duration. It is possible that some participants could be transitioned from epoprostenol to oral therapies. We retrospectively evaluated eight PAH participants transitioned from epoprostenol to PAH oral drugs. The criteria for epoprostenol withdrawal were: (1) persistent improvement of clinic and hemodynamic status; (2) stable dose of epoprostenol for the last three months; and (3) the participant's preference for oral therapy after evaluation of risk-benefit...
April 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28576625/detection-of-mechanical-complications-related-to-the-potential-risk-of-sudden-cardiac-death-in-patients-with-pulmonary-arterial-hypertension-by-computed-tomography
#9
Sang-Eun Lee, Ji Hyun Im, Ji Min Sung, In-Jeong Cho, Chi Young Shim, Geu-Ru Hong, Namsik Chung, Jo Won Jung, Hyuk-Jae Chang
BACKGROUND: We explored the value of cardiac computed tomography (CT) for the detection and prediction of mechanical complications related to the risk of sudden cardiac death (SCD) in pulmonary arterial hypertension (PAH) patients. METHODS: PAH patients (n=60, mean age 47±15, 31.7% male) with pulmonary artery (PA) enlargement (≥40mm) by echocardiography were studied with cardiac CT. Complications explored were the presence of left main coronary artery (LM) compression, airway compression, PA dissection and PA thrombosis in relation to diameters of main PA (MPA) which were measured in (1) axial plane (MPAAx) and (2) LM oblique view (MPALMobq)...
May 25, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28553096/pulmonary-artery-to-aorta-ratio-is-associated-with-cardiac-structure-and-functional-changes-in-mild-to-moderate-copd
#10
Michael J Cuttica, Surya P Bhatt, Sharon R Rosenberg, Lauren Beussink, Sanjiv J Shah, Lewis J Smith, Mark T Dransfield, Ravi Kalhan
BACKGROUND: The ratio of the diameter of the pulmonary artery (PA) to the diameter of the aorta (PA:A) on computed tomography (CT) imaging is associated with both COPD exacerbation and pulmonary hypertension. The mechanisms of PA enlargement in COPD are poorly understood. METHODS: In this retrospective, single center study we evaluated pulmonary function, CT scans, right heart catheterizations, and echocardiography in 88 subjects with mild-to-moderately severe COPD...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28550588/value-of-ct-signs-and-measurements-as-a-predictor-of-pulmonary-hypertension-and-mortality-in-symptomatic-severe-aortic-valve-stenosis
#11
Matthias Eberhard, Monika Mastalerz, Jovana Pavicevic, Thomas Frauenfelder, Fabian Nietlispach, Francesco Maisano, Felix C Tanner, Thi Dan Linh Nguyen-Kim
To assess the value of computed tomography (CT) for non-invasive detection of pulmonary hypertension (PH) in patients with severe aortic stenosis undergoing transcatheter aortic valve implantation (TAVI) and to correlate CT measurements and signs with mortality after TAVI. 257 TAVI patients (median 84 years; 134 females) with both right heart catheterisation (RHC) and CT within 3 days were retrospectively analyzed. According to guidelines PH was defined as mean pulmonary artery pressure ≥25 mmHg in RHC. CT-signs for PH assessment were evaluated...
May 26, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28549020/lung-density-and-pulmonary-artery-diameter-are-predictors-of-pulmonary-hypertension-in-systemic-sclerosis
#12
Margreet E Bakker, Maarten K Ninaber, Jan Stolk, Lucia J M Kroft, Anne A Schouffoer, Jeska K de Vries Bouwstra, Suzanne E van Wijngaarden, Berend C Stoel
PURPOSE: The aim was to evaluate computed tomography (CT)-measured pulmonary artery diameter (PAD) and lung density as predictors of pulmonary hypertension (PH) in subjects with systemic sclerosis (SSc). We compared these PAD values with normal values and between SSc subgroups with PH and/or interstitial lung disease (ILD). We investigated whether PAD predicts PH and whether lung densitometry, by using the 85th percentile density value (Perc85) as a measure for ILD, can predict PH. MATERIALS AND METHODS: PAD and Perc85 were measured in axial CT scans and compared between 54 SSc and 76 control subjects...
May 25, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28526539/diagnostic-accuracy-of-lung-subtraction-iodine-mapping-ct-for-the-evaluation-of-pulmonary-perfusion-in-patients-with-chronic-thromboembolic-pulmonary-hypertension-correlation-with-perfusion-spect-ct
#13
Masashi Tamura, Yoshitake Yamada, Takashi Kawakami, Masaharu Kataoka, Yu Iwabuchi, Hiroaki Sugiura, Masahiro Hashimoto, Tadaki Nakahara, Shigeo Okuda, Seishi Nakatsuka, Fumiya Sano, Takayuki Abe, Yuichiro Maekawa, Keiichi Fukuda, Masahiro Jinzaki
BACKGROUND: For treatment of chronic thromboembolic pulmonary hypertension (CTEPH), the evaluation of segmental pulmonary perfusion is important. There are no previous reports about lung subtraction iodine mapping (LSIM) computed tomography (CT) for evaluation of segmental pulmonary perfusion in patients with CTEPH, using lung perfusion SPECT/CT (LPS) as the reference. METHODS: 50 patients (age, 60.7±16.7years) with known or suspected CTEPH were enrolled in this study...
May 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28522783/splenic-abcesses-as-infectious-complication-following-127-implantation-of-left-ventricular-asssist-device-case-report
#14
Sławomir Gajda, Anna M Szczepanik, Grzegorz Religa, Andrzej Misiak, Andrzej B Szczepanik
Left ventricular assist device (LVAD) is one of the modern management therapies in patients with advanced heart failure, and it serves as a bridge to heart transplantation or even as destination therapy. However, it is burdened with a high risk of thromboembolic, hemorrhagic, and infectious complications despite prophylactic management. Splenic abscesses, as septic complications following implantation of mechanical ventricular support, have not yet been described in the literature. We report of a patient with severe left ventricular insufficiency (NYHA II/III), pulmonary hypertension, and arrhythmia who underwent implantation of the Heart Ware® pump for left ventricular support with simultaneous tricuspidvalvoplasty, as a bridge therapy to heart transplantation...
February 28, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28514393/-subtraction-ct-angiopulmonographic-assessment-of-the-vascular-bed-and-lung-perfusion-in-patients-with-chronic-thromboembolic-pulmonary-hypertension-a-pilot-study
#15
T N Veselova, A Yu Demchenkova, T V Martynyuk, N M Danilov, S K Ternovoy, I E Chazova
AIM: To evaluate the vascular bed and lung perfusion in patients with chronic thromboembolic pulmonary hypertension (CTEPH) by computed tomography (CT) and to compare the severity of pulmonary arterial (PA) thrombotic lesions concurrent with parenchymal perfusion disorders with angiopulmonographic findings and clinical and hemodynamic characteristics. SUBJECTS AND METHODS: In the period from November 2015 to May 2016, 22 patients (7 men, 15 women) aged 27 to 67 years with a verified diagnosis of CTEPH were examined using an Aquilion ONE VISION Edition 640 (Toshiba Medical Systems, Japan) CT scanner with a 320-row detector...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28514116/changes-in-main-pulmonary-artery-diameter-during-follow-up-have-prognostic-implications-in-pulmonary-arterial-hypertension
#16
Adriano R Tonelli, Scott Johnson, Laith Alkukhun, Ruchi Yadav, Raed A Dweik
BACKGROUND AND OBJECTIVE: A dilated pulmonary artery (PA) is a common finding in patients with pulmonary arterial hypertension (PAH). Little is known on the variations in PA size over time and whether these changes track with disease severity and/or predict long-term survival. METHODS: We included patients with PAH who had at least two computed tomography (CT) scans of the chest done on different visits. Both scans matched the use of i.v. contrast. RESULTS: Pairs of CT scans were compared in 113 PAH patients...
May 17, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28512102/uncommon-presentation-of-adult-form-scimitar-syndrome-associated-with-single-left-pulmonary-vein-in-a-pregnant-woman
#17
Sarah Ali Althomali, Ashraf Ahmad Alhefny, Mohammad Salih Almalki
Scimitar syndrome is the constellation of malformations including an abnormal venous drainage of the right lung into the inferior vena cava, associated with the right lung and systemic supply to the right lung. The anomalous vein looks like the curved, Turkish sword (scimitar), hence the name.The adult form of scimitar syndrome is rare, and it is usually an incidental diagnosis based on the characteristic finding on radiological imaging since the patients are usually asymptomatic or with minimal symptoms.Our patient presented with a rare presentation of scimitar syndrome, which is tachyarrhythmia (sinus tachycardia, with episodes of supraventricular tachycardia)...
May 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28506612/identification-of-pulmonary-hypertension-caused-by-left-heart-disease-world-health-organization-group-2-based-on-cardiac-chamber-volumes-derived-from-chest-ct
#18
Galit Aviram, Zach Rozenbaum, Tomer Ziv-Baran, Shlomo Berliner, Yan Topilsky, Dominik Fleischmann, Yon K Sung, Roham T Zamanian, Haiwei Henry Guo
BACKGROUND: Evaluations of patients with pulmonary hypertension (PH) commonly include chest computed tomography (CT). We hypothesized that cardiac chamber volumes calculated from the same CT scans can yield additional information to distinguish left heart disease-related PH (WHO Group 2) from other PH subtypes. METHODS: Patients with right heart catheterization (RHC)-confirmed PH and contrast-enhanced chest CT studies were enrolled in this retrospective multicenter study...
May 12, 2017: Chest
https://www.readbyqxmd.com/read/28488784/ct-determined-pulmonary-artery-to-aorta-ratio-as-a-predictor-of-elevated-pulmonary-artery-pressure-and-survival-in-idiopathic-pulmonary-fibrosis
#19
Mitsuaki Yagi, Hiroyuki Taniguchi, Yasuhiro Kondoh, Masahiko Ando, Tomoki Kimura, Kensuke Kataoka, Taiki Furukawa, Atsushi Suzuki, Takeshi Johkoh, Yoshinori Hasegawa
BACKGROUND AND OBJECTIVE: Elevated mean pulmonary artery pressure (mPAP) is a significant prognostic indicator in idiopathic pulmonary fibrosis (IPF). It has been reported that the computed tomography-determined ratio of the diameter of the pulmonary artery to the aorta (PA:A) is correlated with mPAP in various respiratory diseases. However, in patients with IPF, whether the PA:A can be used to predict elevated mPAP and the prognostic value of the PA:A has not been fully evaluated. METHODS: We conducted a single-centre, observational study of 177 consecutive IPF patients who underwent right heart catheterization...
May 10, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28473092/acr-appropriateness-criteria-%C3%A2-suspected-pulmonary-hypertension
#20
Arlene Sirajuddin, Edwin F Donnelly, Traves P Crabtree, Travis S Henry, Mark D Iannettoni, Geoffrey B Johnson, Ella A Kazerooni, Fabien Maldonado, Kathryn M Olsen, Carol C Wu, Tan-Lucien Mohammed, Jeffrey P Kanne
Pulmonary hypertension may be idiopathic or related to a large variety of diseases. Various imaging examinations that may be helpful in diagnosing and determining the etiology of pulmonary hypertension are discussed. Imaging examinations that may aid in the diagnosis of pulmonary hypertension include chest radiography, ultrasound echocardiography, ventilation/perfusion scans, CT, MRI, right heart catheterization, pulmonary angiography, and fluorine-18-2-fluoro-2-deoxy-d-glucose PET/CT. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel...
May 2017: Journal of the American College of Radiology: JACR
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