Read by QxMD icon Read

CT aorta

Perica Mutavdzic, Marko Dragas, Biljana Kukic, Ksenija Stevanovic, Igor Končar, Nikola Ilić, Ivan Tomic, Milos Sladojevic, Lazar Davidovic
We present a case of successfully treated abdominal aortic aneurysm in a 24-year old patient with Marfan's syndrome. Following initial physical and ultrasound examination, the multislice computed tomography scan revealed infrarenal aortic aneurysm of 6 cm in diameter, 10 cm long, along with slightly dilated iliac arteries. However, dimensions of aortic root, aortic arch and descending suprarenal aorta were within normal limits. Further on, since the patient presented with signs of impending rupture, an urgent surgical intervention was performed...
February 11, 2019: Annals of Vascular Surgery
Yasunori Iida, Koji Osumi, Hiroshi Koganei
An 87-year-old man with severe intermittent claudication and lower limb pain at rest was referred to our hospital for examination. Computed tomography (CT) angiography imaging showed a severe stenosis in the infrarenal abdominal aorta. The ankle brachial indices (ABIs) were 0.62 (right) and 0.60 (left). Endovascular aortic repair was performed with distal protection. The postoperative course was uneventful, and postoperative CT showed no stenosis or distal embolization. The ABI improved to the normal values of 1...
February 11, 2019: Annals of Vascular Surgery
Yousif A Algabri, Sorracha Rookkapan, Vera Gramina, Daniel M Espino, Surapong Chatpun
Aneurysms are considered as a critical cardiovascular disease worldwide when they rupture. The clinical understanding of geometrical impact on the flow behaviour and biomechanics of abdominal aortic aneurysm (AAA) is progressively developing. Proximal neck angulations of AAAs are believed to influence the hemodynamic changes and wall shear stress (WSS) within AAAs. Our aim was to perform pulsatile simulations using computational fluid dynamics (CFD) for patient-specific geometry to investigate the influence of severe angular (≥ 60°) neck on AAA's hemodynamic and wall shear stress...
February 14, 2019: Australasian Physical & Engineering Sciences in Medicine
Arpan R Doshi, Sathish Chikkabyrappa
Coarctation of aorta (CoA) is a discrete narrowing in aorta causing obstruction to the flow of blood. It accounts for 6-8% of all congenital heart diseases. With advances in fetal echocardiography rate of prenatal diagnosis of coarctation of aorta has improved but it still remains a challenging diagnosis to make prenatally. Transthoracic echocardiography is mainstay of making initial diagnosis and routine follow-up. Cardiac magnetic resonance imaging (MRI) and computed tomography (CT) are great advanced imaging tools for two-dimensional and three-dimensional imaging of aortic arch in complex cases...
December 5, 2018: Curēus
Soichiro Henmi, Yuki Ikeno, Koki Yokawa, Yasuko Gotake, Hidekazu Nakai, Katsuhiro Yamanaka, Takeshi Inoue, Hiroshi Tanaka, Yutaka Okita
OBJECTIVES: This study aimed to analyse the early patency rate and long-term outcomes of reattached segmental intercostal arteries using graft interposition, single-cuff anastomosis or island reconstruction. METHODS: We selected 172 consecutive patients who underwent open surgery for the thoracoabdominal aorta with reattachment of segmental arteries between October 1999 and March 2018. The early patency of segmental arteries was analysed using enhanced computed tomography...
February 12, 2019: European Journal of Cardio-thoracic Surgery
Fang Yang, Bo Zhai, Li-Gong Hou, Qian Zhang, Jie Wang
Background: Based on CT image data, a computational fluid dynamics (CFD) model of the aortic arch was established. We aimed to investigate the hemodynamic features associated with end-to-side anastomosis (ESA) surgery for coarctation of the aorta (CoA) by CFD model. Methods: The data of enhanced CT two-dimensional medical images obtained through clinical practice were processed using medical image post-processing software. The three-dimensional model of the aortic arch was obtained through the geometric model and boundary condition...
December 2018: Journal of Thoracic Disease
L Hu, Z Chen, Y Jin, B Jiang, X Wang, H Yu, X Yang
OBJECTIVE: Artery calcification, as subclinical atherosclerosis, is attracting attention. The aim of this study was to determine the prevalence and risk factors of artery calcification in patients with systemic lupus erythematosus. METHODS: 641 patients with systemic lupus erythematosus were enrolled in the study. Demographic, clinical, and laboratory characteristics were collected. Calcification score was quantified from the multi-detector computed tomography scan image using the Agatston Score method...
February 10, 2019: Lupus
Sergio Prieto-González, Michelle Villarreal-Compagny, María C Cid
Imaging has become an essential tool in the management of patients with giant cell arteritis. Cranial involvement detected by Doppler ultrasonography is an unquestionable diagnostic finding. Imaging of the aorta and its branches with positron emission tomography, computed tomography angiography or magnetic resonance imaging may also have a role in diagnosis and in the assessment of disease activity and response to treatment, but standardisation and validation are still needed before their widespread use as an outcome measure...
February 4, 2019: Medicina Clínica
Angelica Ezeigwe, Oluwaseun E Fashanu, Di Zhao, Matthew J Budoff, James D Otvos, Isac C Thomas, Samia Mora, Martin Tibuakuu, Erin D Michos
BACKGROUND AND AIMS: GlycA is a novel composite biomarker of systemic inflammation reflecting posttranslational glycosylation of acute phase reactants. GlycA has been associated with coronary artery calcium, cardiovascular disease (CVD) events and mortality. Vascular calcifications outside of the coronary arteries are risk markers of CVD and mortality. Whether GlycA is linked to extra-coronary calcifications (ECC) is not well established. METHODS: We studied 6462 MESA participants free of clinical CVD who had plasma GlycA measured at baseline...
January 24, 2019: Atherosclerosis
Takumi Toya, Yuji Nagatomo, Kazuki Kagami, Midori Yukino, Risako Yasuda, Takayuki Namba, Yasuo Ido, Shinichi Kobayashi, Nobuyuki Masaki, Hirotaka Yada, Fumihiko Kimura, Takeshi Adachi
BACKGROUND: Periodic echo-based screening to detect early stages of a rare complication of dasatinib, pulmonary arterial hypertension (PAH), is inefficient and weakens the potential benefit of dasatinib as a potent drug for chronic myelogenous leukemia (CML). This study aimed to identify the predisposing factors of DASA-PAH to stratify high-risk patients for dasatinib-induced PAH (DASA-PAH). METHODS: Sixty consecutive adult patients who received dasatinib were enrolled in this case-control study...
February 4, 2019: International Journal of Cardiovascular Imaging
Ana Cristina Villena García, Antonio Gutierrez Cardo, Laura Palomo, Clara M Hidalgo, Eugenia Lillo, Javier Espíldora, José Manuel Trigo, Miguel Ángel Sánchez Chaparro, Pedro Valdivielso
18F-FDG PET/CT predicst cardiovascular disease. To analyze the predictive value of cardiovascular events from inflammation and arterial calcification in patients who underwent an 18F-FDG PET/CT for lung cancer. A retrospective study of 274 patients with primary lung neoplasia.We determined: [1] TBR (target-to-background ratio), and [2] the calcium score, at eight common arterial segments. We took as arteriosclerosis, a TBR ≥1.6 and ≥15 Calcium Score sum. We registered cardiovascular risk factors, comorbidities, histology, stage, treatment, status at the last clinical review, cause of death and cardiovascular event during the follow-up...
February 2, 2019: QJM: Monthly Journal of the Association of Physicians
Atsushi Gakuhara, Yasuhiro Miyazaki, Yukinori Kurokawa, Tsuyoshi Takahashi, Makoto Yamasaki, Tomoki Makino, Koji Tanaka, Masaaki Motoori, Yutaka Kimura, Kiyokazu Nakajima, Shuji Takiguchi, Masaki Mori, Yuichiro Doki
An asymptomatic 74-year-old man was diagnosed with early gastric cancer during screening. Preoperative CT revealed a 25-mm tumor surrounded by the abdominal aorta, inferior vena cava, and left renal vein. Based on the primary tumor stage, para-aortic lymph node metastasis was considered to be unlikely but could not be ruled out. For this reason, we planned a concurrent diagnostic and therapeutic laparoscopic resection with gastrectomy. The gastric cancer and para-aortic tumor were successfully resected laparoscopically...
February 3, 2019: Asian Journal of Endoscopic Surgery
Deniz Elcik, Nihat Kalay, Halil Murat Bucak, Murat Çetin, M Tugrul Inanc
A 67-year-old man was admitted to the emergency unit with abdominal pain. An infrarenal aortic aneurysm with a diameter of 70 millimeters was detected by computed tomography (CT). In the catheter laboratory, graft stents were implanted into the infrarenal aorta total occlusion of the right renal artery was seen in angiography. The graft stent was punctured with a 30° angled Brockenbrough catheter and another stent was implanted.
January 31, 2019: Annals of Vascular Surgery
Xu-Zhi Zheng, Yueng-Hsiang Chu, Chien-Sung Tsai, Chih-Yuan Lin
We present the case of an 89-year-old man with 3-month history of hoarseness and no other significant clinical manifestations. Flexible laryngoscopy revealed a paralyzed left vocal cord, and contrast-enhanced computed tomography showed a thoracic dissecting aortic aneurysm of the distal aortic arch and proximal descending aorta. The aortic aneurysm was repaired through implantation of an endovascular stent graft and the patient was discharged uneventfully after a week. The false lumen was completely thrombosed and the patient has a partial resolution of hoarseness at the 1-year follow-up...
January 31, 2019: Annals of Vascular Surgery
Yoshiyuki Tokuda, Yuji Narita, Kazuro Fujimoto, Masato Mutsuga, Sachie Terazawa, Hideki Ito, Wataru Uchida, Akihiko Usui
BACKGROUND: Postoperative neurologic deficits are associated with significant morbidity in aortic arch replacement. METHODS: A group of 198 consecutive patients undergoing isolated total aortic arch replacement using antegrade cerebral perfusion were analyzed for the risk factors of neurologic deficit. Using computed tomography, atherothrombotic lesions (defined as extensive intimal thickening exceeding 4 mm) were identified in the proximal aorta (the ascending aorta or aortic arch) in 26...
January 30, 2019: Annals of Thoracic Surgery
Pavlos P Kafouris, Iosif P Koutagiar, Alexandros T Georgakopoulos, Nikoletta K Pianou, Marinos G Metaxas, George M Spyrou, Constantinos D Anagnostopoulos
To develop and test a model predicting 2-deoxy-2-[18 F]fluoro-D-glucose ([18 F]FDG) standardized uptake value (SUV) changes over time in the aorta and the superior vena cava (SVC). Maximum aortic SUV and mean SVC SUV were determined at two time points (T1 and T2) in the ascending (ASC), descending (DSC), abdominal (ABD) aorta, aortic arch (ARC) and SVC of patients who have undergone [18 F]FDG PET/CT for clinical purposes. For SUV prediction at T2, linear and non-linear models of SUV difference for a given time change were developed in a derivation group...
January 31, 2019: International Journal of Cardiovascular Imaging
Beatrice Fiorucci, Ramin Banafsche, Thomas Jerkku, Maximilian Pichlmaier, Tilo Kölbel, Barbara Rantner, Nikolaos Tsilimparis
Thoracic aortic aneurysms are a relatively uncommon disease, with an incidence of 10.4/100 000, with an increase in the last decades, due to the increased quality of vascular screening. Several imaging techniques like thoracic radiography, echocardiography, magnetic resonance (MRI) or positron emission tomography (PET) can be used for the diagnosis of such condition, whose first diagnosis is usually incidental. The gold standard for aneurysm evaluation is computed tomography angiography (CTA), which allows precise diameter assessment and accurate preoperative planning...
February 2019: Deutsche Medizinische Wochenschrift
Toshihiro Misumi, Takahisa Suzuki, Hirofumi Tazawa, Masato Kojima, Haruna Kubota, Shintaro Akabane, Naoto Hadano, Wataru Shimizu, Kohei Ishiyama, Takashi Onoe, Takeshi Sudo, Yosuke Shimizu, Takao Hinoi, Hirotaka Tashiro
A 71-year-old man was diagnosed as having Type 2 gastric cancer(tub2, HER2-negative). Abdominal computed tomography( CT)revealed bulky metastatic lymph nodes around the stomach and para-aorta(No. 16a2, b1). Our clinical diagnosis was cT4a(SE)N+M1(PAN), cStage Ⅳb, and SOX therapy was immediately administered. After 3 courses of chemotherapy, the treatment effect was PR, and after 6 courses, the patient was diagnosed with ycT2(MP)N0M0, ycStageⅠB. No Grade 2 or higher adverse events were observed during chemotherapy...
December 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Dominik Deniffel, Andreas Sauter, Julia Dangelmaier, Alexander Fingerle, Ernst J Rummeny, Daniela Pfeiffer
INTRODUCTION: To investigate the utility of quantitative dual-energy spectral CT derived iodine concentration (IC), in comparison with conventional CT attenuation, for the differentiation of pulmonary metastases from different primary malignancies. MATERIALS AND METHODS: CT scans were performed on a dual-layer spectral CT. We retrospectively evaluated pulmonary metastases of 130 patients (77 men and 53 women, mean age 63, range 22-87) with primary bone (OS) (osteosarcoma; n = 6), breast (invasive-ductal adenocarcinoma; n = 17), colorectal (CRC) (adenocarcinoma; n = 27), head and neck (HNC) (squamous cell carcinoma; n = 17), kidney (RCC) (clear-cell renal cell carcinoma; n = 10), lung (adenocarcinoma; n = 12), pancreato-biliary (PBC) (adenocarcinoma; n = 18), prostate (adenocarcinoma; n = 5), soft tissue (undifferentiated pleomorphic sarcoma; n = 6), skin (malignant melanoma; n = 6), and urinary tract (transitional-cell carcinoma; n = 6) malignancies...
February 2019: European Journal of Radiology
Yoshihiro Kubota, Hajime Yokota, Hiroki Mukai, Takuro Horikoshi, Joji Ota, Yasuaki Okafuji, Hideki Ueda, Goro Matsumiya, Takashi Uno
PURPOSE: Preoperative identification of Adamkiewicz artery (AKA) for preventing postoperative spinal cord ischemia is still challenging because of its small diameter. Low-tube-voltage technique might improve the delineation of AKA due to its higher contrast enhancement and contrast-to-noise ratio (CNR). Our purpose was to evaluate the usefulness of low-tube-voltage CTA in visualization of AKA compared with the conventional voltage protocol on the condition with the same imaging parameters aside from tube voltage...
February 2019: European Journal of Radiology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"