Ultra-low-dose computed tomographic angiography with model-based iterative reconstruction compared with standard-dose imaging after endovascular aneurysm repair: a prospective pilot study

2014 ◽  
Vol 39 (6) ◽  
pp. 1297-1303 ◽  
Author(s):  
Sailen G. Naidu ◽  
J. Scott Kriegshauser ◽  
Robert G. Paden ◽  
Miao He ◽  
Qing Wu ◽  
...  
Keyword(s):  
Pilot Study ◽  
Low Dose ◽  
Standard Dose ◽  
Endovascular Aneurysm Repair ◽  
Computed Tomographic Angiography ◽  
Computed Tomographic ◽  
Prospective Pilot Study ◽  
Tomographic Angiography ◽  
Aneurysm Repair ◽  
Dose Imaging

scholarly journals Impact of Dynamic Computed Tomographic Angiography on Endograft Sizing for Endovascular Aneurysm Repair

2009 ◽  
Vol 16 (5) ◽  
pp. 546-551 ◽  
Author(s):  
Jillis A. Pol ◽  
Maarten Truijers ◽  
J. Adam van der Vliet ◽  
Mark F. Fillinger ◽  
Steven P. Marra ◽  
...  
Keyword(s):  
Endovascular Aneurysm Repair ◽  
Computed Tomographic Angiography ◽  
Computed Tomographic ◽  
Tomographic Angiography ◽  
Aneurysm Repair

Ruptured AAA in a Patient with a Horseshoe Kidney: Emergent Treatment Using the Talent Acute Endovascular Aneurysm Repair Kit

2003 ◽  
Vol 10 (2) ◽  
pp. 240-243 ◽  
Author(s):  
Joep A.W. Teijink ◽  
Henk F. Odink ◽  
Bianca Bendermacher ◽  
Rob J.T.J. Welten ◽  
G. Otto Veldhuijzen van Zanten
Keyword(s):  
Endovascular Repair ◽  
Bypass Graft ◽  
Endovascular Aneurysm Repair ◽  
Horseshoe Kidney ◽  
Computed Tomographic Angiography ◽  
Emergency Setting ◽  
Computed Tomographic ◽  
Good General Condition ◽  
Tomographic Angiography ◽  
Aneurysm Repair

Purpose: To report emergent endovascular repair of a ruptured abdominal aortic aneurysm (AAA) in a patient with a horseshoe kidney. Case Report: A 78-year-old man with a horseshoe kidney presented with a contained rupture of a 72-mm AAA. After urgent computed tomographic angiography (CTA) documented the blood supply to the kidney and the suitability of the aneurysm for endovascular repair, the patient was given a local anesthetic. An aortomonoiliac stent-graft constructed from components provided in a Talent Acute Endovascular Aneurysm Repair Kit was inserted successfully. The procedure was completed with placement of a contralateral common iliac artery occluder and a femorofemoral bypass graft. No complications were encountered, and the patient was discharged with an excluded aneurysm on the fourth postoperative day. At 3 months, aneurysm exclusion was confirmed by CTA, and no endoleak was present; the retroperitoneal hematoma had disappeared. The patient remains in good general condition 8 months after treatment Conclusions: The advantages of endovascular aneurysm repair in the emergency setting can facilitate rapid recovery in patients with symptomatic or ruptured aneurysms, especially those having a horseshoe kidney.

Early Computed Tomographic Angiography after Endovascular Aneurysm Repair: Worthwhile or Worthless?

Vascular ◽  
2008 ◽  
Vol 16 (5) ◽  
pp. 253-257 ◽  
Author(s):  
Evert J. Waasdorp ◽  
Joost A. van Herwaarden ◽  
Rob H.W. van de Mortel ◽  
Frans L. Moll ◽  
Jean-Paul P.M. de Vries
Keyword(s):  
Stent Graft ◽  
Endovascular Aneurysm Repair ◽  
Computed Tomographic Angiography ◽  
Type I ◽  
Type Ii ◽  
Graft Thrombosis ◽  
Computed Tomographic ◽  
Tomographic Angiography ◽  
Aneurysm Repair

This study evaluated the value of computed tomographic angiography (CTA) early after an endovascular aneurysm repair (EVAR) in relation to CTA 3 months after EVAR. We retrospectively reviewed all elective EVAR patients with available postprocedural and 3-month follow-up CTAs who were treated between 1996 and 2006. CTAs were analyzed for EVAR-related complications in terms of endoleaks, migration, and stent graft thrombosis. Secondary procedures and other complications within a 4-month time interval after EVAR were noted and analyzed for any association with the postprocedural CTA. During the study period, 291 patients (275 men), with a mean age of 71 years, underwent elective EVAR. All had postprocedural and 3-month follow-up CTAs, which detected 93 (32%) endoleaks (8 type I, 84 type II, 1 type III) and 1 stent graft thrombosis. These findings resulted in four secondary interventions (one interposition cuff, two extension cuffs, one conversion). All reinterventions were successfully done in an elective setting. During the first 3 postoperative months, five other reinterventions were required for acute ischemia in four patients (three Fogarty procedures, one femorofemoral crossover bypass) or groin infection in one patient. Eight patients died, but none of the deaths were related to abdominal aortic aneurysm or EVAR (four cardiac, two pulmonary, one gastric bleeding, one carcinoma). At 3 months, 43 endoleaks (3 type I, 40 type II), 3 stent graft thromboses, and 1 stent graft migration were seen. In two patients (0.7%), a new endoleak was diagnosed compared with the postprocedural CTAs. In 287 (99%) of 291 patients, the postprocedural CTA did not influence our treatment policy in the first 3 months after EVAR. More than half of the early endoleaks were self-limiting, and new endoleaks were seen in only two patients (< 1%) at the 3-month follow-up CTA. After an uneventful EVAR procedure, it is safe to leave out the early postprocedural CTA.

Early Follow-Up After Endovascular Aneurysm Repair: Is the First Postoperative Computed Tomographic Angiography Scan Necessary?

2012 ◽  
Vol 19 (2) ◽  
pp. 151-156 ◽  
Author(s):  
Kyriakos Oikonomou ◽  
Felipe C. Ventin ◽  
Kosmas I. Paraskevas ◽  
Peter Geisselsöder ◽  
Wolfgang Ritter ◽  
...  
Keyword(s):  
Endovascular Aneurysm Repair ◽  
Computed Tomographic Angiography ◽  
Computed Tomographic ◽  
Tomographic Angiography ◽  
Aneurysm Repair

Selective computed tomographic angiography in traumatic subarachnoid hemorrhage: a pilot study

2015 ◽  
Vol 199 (1) ◽  
pp. 183-189 ◽  
Author(s):  
Kathryn J. Balinger ◽  
Adham Elmously ◽  
Brian A. Hoey ◽  
Christy D. Stehly ◽  
Stanislaw Peter Stawicki ◽  
...  
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Pilot Study ◽  
Computed Tomographic Angiography ◽  
Computed Tomographic ◽  
Traumatic Subarachnoid Hemorrhage ◽  
Tomographic Angiography

Low-Dose Computed Tomographic Imaging of Partial Anomalous Pulmonary Venous Connection in Children

2017 ◽  
Vol 8 (5) ◽  
pp. 590-596 ◽  
Author(s):  
Aysel Türkvatan ◽  
Hasan Tahsin Tola ◽  
Neşe Kutlutürk ◽  
Alper Güzeltaş ◽  
Yakup Ergül
Keyword(s):  
Low Dose ◽  
Superior Vena ◽  
Pulmonary Veins ◽  
Vena Cava ◽  
Computed Tomographic Angiography ◽  
Computed Tomographic ◽  
Dual Source ◽  
Tomographic Angiography ◽  
Anomalous Pulmonary Venous Connection ◽  
Cardiovascular Anomalies

Background: In this study, we aimed to determine lobar distribution, drainage sites, and associated cardiovascular anomalies of partial anomalous pulmonary venous connection in pediatric patients using low-dose multidetector computed tomographic angiography. Methods: Sixty-one cases (27 female, mean age: 4.7 years) with partial anomalous pulmonary venous connection diagnosed by multidetector computed tomographic angiography were included in this study. In all patients, multidetector computed tomographic angiography examinations were performed using dual-source 256-slice scanner without sedation. Results: In 61 patients, 73 anomalous pulmonary veins were detected, 56 (77%) of them were right-sided and 17 (23%) were left-sided. Of 56 right-sided anomalous pulmonary veins in 49 patients, 38 (68%) drained into superior vena cava, eight (14%) into atriocaval junction, six (11%) into inferior vena cava, three (5%) into right atrium, and one (2%) into levoatriocardinal vein. Of 17 left-sided anomalous pulmonary veins in 12 patients, 16 (94%) drained into left innominate vein, and one (6%) into coronary sinus. Only seven (12%) patients had isolated partial anomalous pulmonary venous connection, whereas 54 (88%) patients had additional cardiovascular anomalies. The most common (66%) associated anomaly is atrial septal defect. The overall mean effective radiation dose was 1.12 mSv (range: 0.15-7.41 mSv), and it was 0.58 mSv (range: 0.15-0.73) in the patients younger than one-year old. Conclusions: The presence and course of the anomalous pulmonary veins and associated cardiovascular anomalies can be reliably detected by dual-source 256-slice multidetector computed tomographic angiography with low radiation doses.

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