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Cardiovascular and Interventional Radiology

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https://www.readbyqxmd.com/read/28439625/-direct-mpr-a-useful-tool-for-oblique-ct-fluoroscopy-assisted-puncture
#1
Rui Sato, Takeshi Aramaki, Kiichiro Yoza, Kenji Iwai, Michihisa Moriguchi, Koiku Asakura, Masahiro Endo, Takahiro Ito
OBJECTIVE: Conventional multiplanar reconstruction (MPR) imaging can be used as a tool for planning oblique puncture procedures, but it takes a few minutes to reconstruct and is not appropriate for real-time CT fluoroscopy-assisted puncture. Recently, new MPR technology has been used that requires only 8 s and makes it possible to obtain a nearly real-time CT fluoroscopy-assisted oblique puncture. We refer to it as "direct MPR." This is the first clinical report of this technique. METHODS: Since February 2016, we have performed real-time, CT-guided oblique punctures with this new technology, "direct MPR," using an angio-CT system...
April 24, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28432387/yttrium-90-radioembolization-for-unresectable-combined-hepatocellular-cholangiocarcinoma
#2
Lauren S Chan, Daniel Y Sze, George A Poultsides, John D Louie, Mohammed A Abdelrazek Mohammed, David S Wang
PURPOSE: Combined hepatocellular-cholangiocarcinoma (cHCC-CC) is a rare mixed cell type primary liver cancer with limited data to guide management. Transarterial radioembolization with yttrium-90 microspheres (RE) is an emerging treatment option for both hepatocellular carcinoma and intrahepatic cholangiocarcinoma. This study explored the safety and efficacy of RE for unresectable cHCC-CC. METHODS: Patients with histopathologically confirmed cHCC-CC treated with RE were retrospectively evaluated...
April 21, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28432386/is-a-routine-chest-x-ray-necessary-in-every-patient-after-percutaneous-ct-guided-lung-biopsy-a-retrospective-review-of-278-cases
#3
Shayandokht Taleb, Hamed Jalaeian, Nickolas Frank, Jafar Golzarian, Donna D'Souza
PURPOSE: To determine the rate, clinical significance, and predictors of delayed pneumothorax after CT-guided lung biopsy. METHODS: Medical and imaging records of all patients who underwent CT-guided lung biopsy between January 1, 2012, and January 9, 2015, were reviewed. "Early pneumothorax" was defined as one visualized on CT scan at the time of biopsy, "delayed pneumothorax" as one discovered on the first follow-up chest X-ray (CXR), and "clinically significant pneumothorax" as one requiring chest tube placement...
April 21, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28389860/a-novel-self-expandable-radioactive-airway-stent-loaded-with-125-i-seeds-a-feasibility-and-safety-study-in-healthy-beagle-dog
#4
Yong Wang, Jin-He Guo, Guang-Yu Zhu, Hai-Dong Zhu, Li Chen, Jian Lu, Chao Wang, Gao-Jun Teng
PURPOSE: Airway stent placement is an effective treatment for the immediate palliation of malignant airway obstruction. However, restenosis caused by tumor ingrowth and/or overgrowth after stenting is common. The purpose of this study was to investigate the feasibility and safety of a novel self-expandable stent loaded with (125)I seeds in healthy beagle dog. MATERIALS AND METHODS: Under fluoroscopic guidance, forty-eight self-expandable airway stents loaded with (125)I seeds were perorally placed in the main trachea of 48 healthy beagle dogs, who were randomly divided into four groups (Group A: 0...
April 7, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28386707/laser-recanalization-of-a-chronically-occluded-transjugular-intrahepatic-portosystemic-shunt-tips
#5
Alaa Mahmoud, David M Tabriz, Beau B Toskich
Transjugular intrahepatic portosystemic shunt (TIPS) dysfunction is conventionally managed with balloon angioplasty, stent extension, and sharp recanalization when necessary. We describe percutaneous transjugular recanalization and neointimal excision of a chronically occluded 17-year-old TIPS using excimer laser after conventional techniques were unsuccessful. Patient clinical improvement and shunt patency were documented three weeks post-intervention.
April 6, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28382389/ct-guided-intranodal-lymphangiography-for-postoperative-chylous-ascites
#6
Masanori Hirata, Atsuo Shimizu, Shoko Abe, Azusa Ichinose, Akira Sugiyama, Yusuke Tanino, Suguru Watanabe, Ryota Nakano, Yoshihiko Kato, Toshiyuki Miyahara, Yasuhiro Sumi, Hiroshi Nakano
The utility and minimal invasiveness of ultrasound-guided intranodal lymphangiography have already been reported by several researchers. Although ultrasound-guided intranodal lymphangiography is known to be not technically difficult in general, a patient's edematous groin due to hypoalbuminemia resulting from chylous ascites made it too challenging to detect and prick the lymph nodes precisely. This report describes a 71-year-old female with refractory chylous ascites due to an operation for an extrahepatic bile duct cancer, who was successfully treated by computed tomography (CT)-guided intranodal lymphangiography...
April 5, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28382388/transcatheter-closure-of-anastomotic-leakage-after-aortic-surgery-for-type-a-dissection-with-the-amplatzer-duct-occluder-ii
#7
Junzhou Pu, Lianjun Huang, Wenhui Wu
Aortic anastomotic leakage is an inevitable but intractable complication of surgery for type A dissection. The treatment has been mostly surgical with a high rate of morbidity and mortality. We describe a 54-year-old patient with anastomotic leakage after his secondary surgery for type A dissection. The leakage located at the proximal site of the stent-graft and fed the false lumen. We have performed a complete occlusion by transcatheter closure using Amplatzer Duct Occluder II.
April 5, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28378051/immediate-resolution-of-a-grade-3-varicocele-post-prostatic-artery-embolisation-pae
#8
LETTER
Charles R Tapping, Mark W Little, Phil Boardman
No abstract text is available yet for this article.
April 4, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28378050/adrenal-vein-sampling-for-primary-aldosteronism-a-2-week-protocol-for-withdrawal-of-renin-stimulating-antihypertensives
#9
Kevin C Ching, Debbie L Cohen, Douglas L Fraker, Scott O Trerotola
OBJECTIVE: For evaluation of primary aldosteronism, international guidelines recommend a 4-6 week withdrawal of spironolactone, eplerenone, and amiloride prior to adrenal vein sampling (AVS). It is not always feasible to withdraw these drugs in patients with severe hypertension and hypokalemia. We present our experience evaluating the efficacy and clinical outcomes of a 2-week protocol for withdrawal of renin-stimulating antihypertensives prior to AVS. DESIGN: A single-center retrospective review of all patients who underwent AVS for primary aldosteronism between January 2014 and December 2015...
April 4, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28378049/mri-guided-cryoablation-of-in-transit-metastases-from-cutaneous-melanoma-a-brief-report-on-a-preliminary-experience
#10
Aymeric Rauch, Roberto Luigi Cazzato, Julien Garnon, Behnam Shaygi, Georgia Tsoumakidou, Jean Caudrelier, Salem Bauones, Guillaume Koch, Dan Lipsker, Afshin Gangi
This study aims to discuss MRI-guided cryoablation (CA) of in-transit (IT) metastases from melanoma and to retrospectively present our preliminary experience in such a specific field. Three female patients (mean age 55.6 years; range 39-64) were included, and eight IT metastases (mean size 12.4 ± 6.5 mm, range: 5-25) were treated in three different sessions. Technical success was 100%; and mean procedural time 129.3 ± 103 min. (range 42-243). Primary local tumour control was 100% at 1-, 6- and 12-month follow-up; and 87...
April 4, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28361195/percutaneous-image-guided-cryoablation-as-second-line-therapy-of-soft-tissue-venous-vascular-malformations-of-extremities-a-prospective-study-of-safety-and-6-month-efficacy
#11
F H Cornelis, C Labrèze, V Pinsolle, Y Le Bras, C Castermans, C Bader, R Thiebaut, D Midy, N Grenier
PURPOSE: To report the safety and short-term efficacy of percutaneous image-guided cryoablation performed as second-line therapy of venous vascular malformations (VVM) of extremities. MATERIALS AND METHODS: In this non-blinded, no-randomized trial, cryoablation was proposed in 14 patients presenting with symptomatic VVM for recurrences after treatment. Eligibility criteria were: cryoablation feasible, localization at least 5 mm from skin and nerves, absence of contra-indication for anesthesia...
March 30, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28357576/a-novel-external-carotid-arterial-sheath-system-for-intra-arterial-infusion-chemotherapy-of-head-and-neck-cancer
#12
Noriko Ii, Nobukazu Fuwa, Yutaka Toyomasu, Akinori Takada, Miwako Nomura, Tomoko Kawamura, Hajime Sakuma, Yoshihito Nomoto
PURPOSE: The purpose of this study was to describe a novel system for treating advanced head and neck cancer consisting of an external carotid arterial sheath (ECAS) and a microcatheter to inject drugs retrogradely into multiple feeding arteries through the superficial temporal artery (STA). MATERIALS AND METHODS: Four consecutive patients with head and neck cancer that had more than one feeding artery were enrolled in this study. The ECAS was made of polyurethane and surface-coated with heparin resin to prevent thrombus formation, allowing it to remain in place for a prolonged period of time...
March 29, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28357575/ultrasound-guided-biopsies-of-bone-lesions-without-cortical-disruption-using-fusion-imaging-and-needle-tracking-proof-of-concept
#13
Julien Garnon, Guillaume Koch, Georgia Tsoumakidou, Jean Caudrelier, Basavaraj Chari, Roberto Luigi Cazzato, Afshin Gangi
OBJECTIVE: To assess the technical feasibility and safety of combined fusion imaging and needle tracking under ultrasound guidance to target bone lesions without cortical disruption. MATERIALS AND METHODS: Between January 2016 and March 2016, seven patients underwent US-guided biopsy of bone lesions without cortical disruption. Targeted bone lesions were measuring more than 1.5 cm with a thin cortex, a trans-osseous pathway not exceeding 2 cm and without any adjacent vulnerable structures...
March 29, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28357574/percutaneous-imaging-guided-screw-fixation-of-osteoporotic-transverse-fractures-of-the-lower-sacrum-with-cement-augmentation-report-of-2-cases
#14
Julien Garnon, Guillaume Koch, Nitin Ramamurthy, Salem Bauones, Jean Caudrelier, Georgia Tsoumakidou, Roberto Luigi Cazzato, Afshin Gangi
Osteoporotic fractures of the sacrum usually involve the sacral ala and can be managed with percutaneous cementoplasty if conservative therapy failed to achieve bone consolidation. On the other hand, isolated transverse fractures of the lowest sacrum are more rare, with little literature focusing on their management in the osteoporotic population. If pseudoarthrosis occurs in this location, sacroplasty is not an optimal therapeutic option because of the poor biomechanical resistance of cement to multi-directional stresses...
March 29, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28357573/retrospective-evaluation-of-safety-efficacy-and-risk-factors-for-pneumothorax-in-simultaneous-localizations-of-multiple-pulmonary-nodules-using-hook-wire-system
#15
Yan Zhong, Xiao-Quan Xu, Xiang-Long Pan, Wei Zhang, Hai Xu, Mei Yuan, Ling-Yan Kong, Xue-Hui Pu, Liang Chen, Tong-Fu Yu
PURPOSE: To evaluate the safety and efficacy of the hook wire system in the simultaneous localizations for multiple pulmonary nodules (PNs) before video-assisted thoracoscopic surgery (VATS), and to clarify the risk factors for pneumothorax associated with the localization procedure. METHODS: Between January 2010 and February 2016, 67 patients (147 nodules, Group A) underwent simultaneous localizations for multiple PNs using a hook wire system. The demographic, localization procedure-related information and the occurrence rate of pneumothorax were assessed and compared with a control group (349 patients, 349 nodules, Group B)...
March 29, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28357572/safety-and-efficacy-of-y-90-radioembolization-after-prior-major-hepatic-resection
#16
Markus Zimmermann, Maximilian Schulze-Hagen, Martin Liebl, Federico Pedersoli, Fabian Goerg, Tom Florian Ulmer, Alexander Heinzel, Peter Isfort, Christiane Kuhl, Philipp Bruners
PURPOSE: To evaluate the safety and efficacy of yttrium-90 radioembolization (RE) following left or right hepatic lobectomy. MATERIALS AND METHODS: Between 2011 and 2016, 15 patients underwent RE with Y90-resin microspheres following right (8/15) or left (7/15) hepatic lobectomy. In eight patients, the whole liver remnant was treated during a single session, whereas the remaining seven patients received up to 3 selective RE at 1- to 2-month intervals. The administered patient activity was calculated based on the body surface area (BSA) method in all cases...
March 29, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28357571/predicting-treatment-response-of-colorectal-cancer-liver-metastases-to-conventional-lipiodol-based-transarterial-chemoembolization-using-diffusion-weighted-mr-imaging-value-of-pretreatment-apparent-diffusion-coefficients-adc-and-adc-changes-under-therapy
#17
Maximilian Lahrsow, Moritz H Albrecht, Matthew W Bickford, Thomas J Vogl
PURPOSE: To use absolute pretreatment apparent diffusion coefficients (ADC) derived from diffusion-weighted MR imaging (DWI) to predict response to repetitive cTACE for unresectable liver metastases of colorectal carcinoma (CRLM) at 1 and 3 months after start of treatment. MATERIALS AND METHODS: Fifty-five metastases in 34 patients were examined with DWI prior to treatment and 1 month after initial cTACE. Treatment was performed in 4-week intervals. Response was evaluated at 1 and 3 months after start of therapy...
March 29, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28357570/sodium-tetradecyl-sulfate-induced-acute-allergic-interstitial-nephritis
#18
LETTER
So Hyun Park, Yoo Jin Lee, Saher S Sabri, Helen P Cathro
No abstract text is available yet for this article.
March 29, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28337701/ct-guided-drainage-of-pericardial-effusion-after-open-cardiac-surgery
#19
Nour-Eldin Abdelrehim Nour-Eldin, Mohammed Alsubhi, Tatjana Gruber-Rouh, Thomas J Vogl, Benjamin Kaltenbach, Hazem Hamed Soliman, Wael Eman Hassan, Sherif Maher Abolyazid, Nagy N Naguib
PURPOSE: This study was designed to evaluate the safety and efficacy of CT-guided drainage of the pericardial effusion in patients after cardiac surgery. MATERIALS AND METHODS: The study included 128 consecutive patients (82 males, 46 females; mean age 66.6 years, SD: 4.2) complicated by pericardial effusion or hemopericardium after cardiac surgeries between June 2008 and June 2016. The medical indication for therapeutic pericardiocentesis in all patients was hemodynamic instability caused by pericardial effusion...
March 23, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28321543/understanding-the-lung-abscess-microbiome-outcomes-of-percutaneous-lung-parenchymal-abscess-drainage-with-microbiologic-correlation
#20
Christopher Duncan, Gregory J Nadolski, Terence Gade, Stephen Hunt
INTRODUCTION: Lung parenchymal abscesses represent an uncommon pathology with high mortality if untreated. Although most respond well to antibiotics, the optimal therapy for persistent abscesses is unknown. The purpose of this study was to review the outcomes of percutaneous lung parenchymal abscess catheter drainage after broad-spectrum antibiotic therapy failure and correlate with patient microbiologic samples. MATERIALS AND METHODS: Retrospective review of patients who underwent percutaneous lung abscess drainage at a tertiary hospital system from 2005 to 2015 was performed...
March 20, 2017: Cardiovascular and Interventional Radiology
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