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Matsutani H, Shiraishi T, Kita Y, Fujimoto AH, Takushima A. Effectiveness of the proximal medial branch in DIEP flaps for breast reconstruction using Hartrampf zone IV. J Plast Reconstr Aesthet Surg 2024; 96:168-174. [PMID: 39094371 DOI: 10.1016/j.bjps.2024.07.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 06/13/2024] [Accepted: 07/08/2024] [Indexed: 08/04/2024]
Abstract
BACKGROUND When performing breast reconstruction using a deep inferior epigastric artery (DIEA) perforator (DIEP) flap, including Hartrampf zone IV, the bipedicled DIEP flap has been argued to be necessary to ensure stable perfusion. However, a proximal medial branch (PMB), which is the most proximal perforator of DIEA, may make it possible to obtain adequate perfusion in a unilateral DIEP flap. This study aimed to clarify the detailed anatomical characteristics of PMB and its potential clinical applications in breast reconstruction. METHODS This retrospective study was conducted on breast reconstruction using the DIEP flap between May 2020 and July 2023. Data on PMB anatomy were collected from preoperative contrast-enhanced computed tomography angiography, and contralateral perfusion of the flap was estimated using intraoperative indocyanine green angiography. RESULTS PMB was present in approximately 85% of the cases, arising near the lateral border of the rectus abdominis, branching caudomedially in more than half of the cases, and perforating 2.3 cm laterally and 8.8 cm caudally, on average, from the umbilicus. The average perfusion area of zones II and IV significantly expanded to 96.5% and 74.2%, respectively, when PMB was included in the DIEP flap, and 9 of 22 cases showed contrast extending to the entire zone IV. CONCLUSIONS The use of the DIEP flap with PMB is a good option for substantial-volume breast reconstruction. When utilizing PMB, it is important to consider its specific anatomy, location of the main perforator, and pedicle length.
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Affiliation(s)
- Hitomi Matsutani
- Department of Plastic Surgery, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka City, Tokyo 181-8611, Japan.
| | - Tomohiro Shiraishi
- Department of Plastic Surgery, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka City, Tokyo 181-8611, Japan
| | - Yukihiro Kita
- Department of Plastic Surgery, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka City, Tokyo 181-8611, Japan
| | - Avelino Hiroshi Fujimoto
- Department of Plastic Surgery, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka City, Tokyo 181-8611, Japan
| | - Akihiko Takushima
- Department of Plastic Surgery, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka City, Tokyo 181-8611, Japan
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Higuchi A, Kubota Y, Yokota H, Miyazaki H, Ota J, Okafuji Y, Takaoka H, Uno T. Computed tomography angiography assessment of Adamkiewicz artery with sublingual nitroglycerin administration. Neuroradiology 2024:10.1007/s00234-024-03433-9. [PMID: 39102086 DOI: 10.1007/s00234-024-03433-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 07/11/2024] [Indexed: 08/06/2024]
Abstract
PURPOSE Identification of the Adamkiewicz artery before aortic surgery is important for preventing postoperative complications due to spinal cord ischemia. The Adamkiewicz artery is difficult to identify due to its small diameter. Nitroglycerin has a vasodilatory effect and is used clinically to improve visualization of blood vessels on coronary computed tomography (CT) angiography. We investigated whether the vasodilatory effect of nitroglycerin could improve the ability to visualize the Adamkiewicz artery. METHODS We extracted 33 cases wherein contrast-enhanced CT images were taken before and after aortic aneurysm surgery. Nitroglycerin was administered for coronary artery evaluation on the preoperative CT. However, no nitroglycerin was administered before the postoperative CT. Aortic contrast-to-noise ratio, CT value, image noise, and diameter of the Adamkiewicz artery and anterior spinal artery were measured. The depiction of the Adamkiewicz artery was graded into four grades and evaluated. These measurements were performed by two independent reviewers. RESULTS In nitroglycerin-administered cases, the contrast-to-noise ratio and CT values were significantly higher (P < 0.001, P < 0.001, respectively); the Adamkiewicz artery and anterior spinal artery diameters were dilated (P = 0.005, P = 0.001, respectively). The Adamkiewicz artery score also improved significantly (P < 0.001). No significant difference was found in image noise. CONCLUSION Nitroglycerin contributed to improving the Adamkiewicz artery's visualization.
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Affiliation(s)
- Akio Higuchi
- Department of Radiology, Chiba University Hospital, Chiba, Japan
| | - Yoshihiro Kubota
- Department of Radiology, Chiba University Hospital, Chiba, Japan.
| | - Hajime Yokota
- Department of Diagnostic Radiology and Radiation Oncology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Hiroki Miyazaki
- Department of Radiology, Chiba University Hospital, Chiba, Japan
| | - Joji Ota
- Department of Radiology, Chiba University Hospital, Chiba, Japan
| | - Yasuaki Okafuji
- Department of Radiology, Numazu City Hospital, Shizuoka, Japan
| | - Hiroyuki Takaoka
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Takashi Uno
- Department of Diagnostic Radiology and Radiation Oncology, Chiba University Graduate School of Medicine, Chiba, Japan
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Lu G, Su Y, Jiang Y, Yang L, Wang Y, Shi G, Zhang F, Duan X, Hu H. Improving the visualisation of perforator arteries for anterolateral thigh flaps harvest in CT angiography via sublingual glyceryl trinitrate. Clin Radiol 2023; 78:e791-e797. [PMID: 37574403 DOI: 10.1016/j.crad.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 07/05/2023] [Accepted: 07/08/2023] [Indexed: 08/15/2023]
Abstract
AIM To investigate the improvement of image quality and visualisation of the anterolateral thigh (ALT) flap perforators on computed tomography angiography (CTA) after administration of sublingual glyceryl trinitrate (GTN). MATERIALS AND METHODS Sixty patients with oral lesions received thigh CTA examinations were divided randomly into two groups after administration of sublingual GTN (GTN group) or without administration of sublingual GTN (non-GTN group). Two radiologists calculated the signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and assessed the image quality of each vessel. Besides, the grade of thigh artery, the lumen diameter of deep femoral artery, lateral circumflex femoral artery (LCFA), the descending branch of LCFA and its proximal and distal perforators, and the number and type of visible perforators were evaluated quantitatively. RESULTS The SNR and CNR were not significantly different between the two groups (p>0.05). The image quality of CTA in the GTN group was significantly better than that in the non-GTN group (p<0.01). The lumen diameters of the deep femoral artery, LCFA, the descending branch of LCFA and its perforators were significantly larger in the GTN group than those in the non-GTN group (p<0.01). Compared with the non-GTN group, the number of visible perforators and the number of visible septocutaneous perforators were significantly more in the GTN group, and the qualitative grade of visible perforators was significantly higher (p<0.001). CONCLUSIONS The administration of sublingual GTN in preoperative thigh CTA can improve the image quality and visualisation of perforator vessels, thus could help surgeons to select the optimum ALT flaps.
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Affiliation(s)
- G Lu
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China
| | - Y Su
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China
| | - Y Jiang
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China
| | - L Yang
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China
| | - Y Wang
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China
| | - G Shi
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - F Zhang
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China
| | - X Duan
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.
| | - H Hu
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China.
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Yang L, Yan Z, Lu G, Jiang Y, Wang Y, Shi G, Chen L, Hu H, Duan X. Nitroglycerin improves the visibility of fibula-free flap perforators on computed tomography angiography in patients with oral or maxillofacial lesion. Eur J Radiol 2023; 164:110877. [PMID: 37187079 DOI: 10.1016/j.ejrad.2023.110877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 04/30/2023] [Accepted: 05/05/2023] [Indexed: 05/17/2023]
Abstract
PURPOSE To investigate the improvement of image quality and visualization of fibula-free flap (FFF) perforators on computed tomography angiography (CTA) after administration of sublingual nitroglycerin (NTG) tablets. METHODS A total of 60 patients with oral or maxillofacial lesions before CTA of the lower extremity were randomly divided into two groups (NTG group and non-NTG group). The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR), overall image quality and grading of vessels were evaluated and compared. The lumen diameters of the major arteries and the proximal and distal peroneal perforators were measured. The number of visible perforators in muscular clearance and muscular layer was also counted and compared between the two groups. RESULTS The CNR of posterior tibial artery and overall image quality of CTA images in the NTG group was significantly higher than that in the non-NTG group (p < 0.05), although the SNR and CNR of other arteries did not show significant differences (p > 0.05). The lumen diameters of the peroneal artery and its perforators, anterior tibial artery, and posterior tibial artery were significantly larger in the NTG group (p < 0.001), while no significant difference prevailed in the diameter of the popliteal artery between the two groups (p = 0.298). Compared with the non-NTG group, a significant increase in the number of visible perforators was noted in the NTG group (p < 0.001). CONCLUSIONS The administration of sublingual NTG in CTA of the lower extremity can improve the image quality and visualization of perforators, which aids to surgeons select the optimum FFF.
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Affiliation(s)
- Lingjie Yang
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 Yanjiang Road West, Guangzhou 510120, Guangdong, China
| | - Zhuoheng Yan
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 Yanjiang Road West, Guangzhou 510120, Guangdong, China
| | - Guoxiong Lu
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 Yanjiang Road West, Guangzhou 510120, Guangdong, China
| | - Yusong Jiang
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 Yanjiang Road West, Guangzhou 510120, Guangdong, China
| | - Yu Wang
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 Yanjiang Road West, Guangzhou 510120, Guangdong, China
| | - Guangzi Shi
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 Yanjiang Road West, Guangzhou 510120, Guangdong, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Lina Chen
- CHN DI CT Collaboration, Siemens Healthcare Ltd, No.399 West Haiyang Road, Shanghai 200126, China
| | - Huijun Hu
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 Yanjiang Road West, Guangzhou 510120, Guangdong, China
| | - Xiaohui Duan
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, No. 107 Yanjiang Road West, Guangzhou 510120, Guangdong, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.
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Gupta S, Dixit R, Prakash A, Daga MK, Mishra A. Can Sublingual Nitrate Improve Visualization of Lower Limb Arteries on Computed Tomography Angiography? J Comput Assist Tomogr 2023:00004728-990000000-00152. [PMID: 36877793 DOI: 10.1097/rct.0000000000001446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
OBJECTIVE The aim of the study is to evaluate the role of sublingual nitrate in improving vessel visualization on peripheral computed tomography angiography (CTA). METHODS Fifty patients clinically diagnosed with peripheral arterial disease of the lower limb were prospectively included in this study: Twenty-five underwent CTA after sublingual nitrate administration (nitrate group) and 25 without (non-nitrate group). Two blinded observers qualitatively and quantitatively assessed the data thus generated. The mean luminal diameter, intraluminal attenuation, site, and percentage of stenosis were evaluated in all segments. Assessment of collateral visualization at sites of significant stenosis was also done. RESULTS Patients in the nitrate and non-nitrate groups were similar in age and sex characteristics (P > 0.05).On subjective evaluation, there was significantly improved visualization of the femoropopliteal and tibioperoneal vasculature of the lower limb in the nitrate group compared with the non-nitrate group (P < 0.05). Quantitative evaluation showed a statistically significant difference in the measured arterial diameters for all evaluated segments in the nitrate group versus the non-nitrate group (P < 0.05). Intra-arterial attenuation was significantly greater for all segments in the nitrate group resulting in better contrast opacification in these studies. Collateral visualization around segments with more than 50% stenosis/occlusion was also better in the nitrate group. CONCLUSIONS Our study suggests that nitrate administration before peripheral vascular CTA can improve visualization, especially in the distal segments by increasing the vessel diameter and intraluminal attenuation along with better delineation of the collateral circulation around stenotic areas. It may also improve the number of evaluable segments of vasculature in these angiographic studies.
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Affiliation(s)
- Sanchita Gupta
- From the Department of Radiodiagnosis, Maulana Azad Medical College, New Delhi, India
| | - Rashmi Dixit
- From the Department of Radiodiagnosis, Maulana Azad Medical College, New Delhi, India
| | - Anjali Prakash
- From the Department of Radiodiagnosis, Maulana Azad Medical College, New Delhi, India
| | - Mradul Kumar Daga
- Department of Internal Medicine and Infectious disease, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Anurag Mishra
- Department of Surgery, Maulana Azad Medical College, New Delhi, India
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Biesenbach IIA, Heinsen LJ, Overgaard KS, Andersen TR, Auscher S, Egstrup K. The Effect of Clinically Indicated Liraglutide on Pericoronary Adipose Tissue in Type 2 Diabetic Patients. Cardiovasc Ther 2023; 2023:5126825. [PMID: 36714196 PMCID: PMC9867582 DOI: 10.1155/2023/5126825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 12/18/2022] [Accepted: 12/21/2022] [Indexed: 01/15/2023] Open
Abstract
Vascular inflammation can be detected in the pericoronary adipose tissue (PCAT) by coronary computed tomography angiography (CCTA) attenuation. Treatment with liraglutide is associated with anti-inflammatory effects and reduces cardiovascular risk in diabetic patients. This study is aimed at examining the effect of clinically indicated liraglutide on PCAT attenuation. Asymptomatic patients with type 2 diabetes mellitus (T2DM) and without known ischemic heart disease underwent clinical examination, blood analysis, and CCTA. The main coronary arteries were outlined and PCAT attenuation was measured on the proximal 40 mm. Patients treated with liraglutide on a clinical indication were compared to patients not receiving liraglutide. The study included 190 patients; 53 (28%) received liraglutide (Lira+) and 137 (72%) did not (Lira-). There were no significant differences in PCAT attenuation between the two groups in either artery. However, PCAT attenuation measured around the left anterior descending artery (LAD) was lower in the Lira+ group after adjustment for age, sex, body mass index, and T2DM duration (b coefficient -2.4, p = 0.029). In a population of cardiac asymptomatic T2DM patients, treatment with clinically indicated liraglutide was not associated with differences in PCAT attenuation compared to nonliraglutide treatment in the unadjusted model. An association was seen in the adjusted model for the left anterior descending artery, possibly indicating an anti-inflammatory effect.
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Affiliation(s)
- Irmelin I. A. Biesenbach
- Faculty of Health Science, University of Southern Denmark, Winsløwparken 19, 5000 Odense C, Denmark
- Cardiovascular Research Unit, Odense University Hospital Svendborg, Baagøes Alle 15, 5700 Svendborg, Denmark
| | - Laurits J. Heinsen
- Cardiovascular Research Unit, Odense University Hospital Svendborg, Baagøes Alle 15, 5700 Svendborg, Denmark
| | - Katrine S. Overgaard
- Cardiovascular Research Unit, Odense University Hospital Svendborg, Baagøes Alle 15, 5700 Svendborg, Denmark
| | - Thomas R. Andersen
- Cardiovascular Research Unit, Odense University Hospital Svendborg, Baagøes Alle 15, 5700 Svendborg, Denmark
| | - Søren Auscher
- Cardiovascular Research Unit, Odense University Hospital Svendborg, Baagøes Alle 15, 5700 Svendborg, Denmark
| | - Kenneth Egstrup
- Faculty of Health Science, University of Southern Denmark, Winsløwparken 19, 5000 Odense C, Denmark
- Cardiovascular Research Unit, Odense University Hospital Svendborg, Baagøes Alle 15, 5700 Svendborg, Denmark
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Assessment of coronary spasms with transluminal attenuation gradient in coronary computed tomography angiography. PLoS One 2022; 17:e0271189. [PMID: 35802711 PMCID: PMC9269916 DOI: 10.1371/journal.pone.0271189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 06/24/2022] [Indexed: 11/20/2022] Open
Abstract
Purpose To evaluate the imaging features of coronary spasm, including transluminal attenuation gradient (TAG) on coronary computed tomography angiography (CCTA), in patients with vasospastic angina (VA). Methods A total of 43 patients with a high clinical likelihood of VA were included in the study. All the subjects underwent double CCTA acquisition: CCTA without a vasodilator (‘baseline CT’) and CCTA during continuous intravenous nitrate infusion (‘IV nitrate CT’). A catheterized ergonovine provocation test was used to determine true VA patients. Coronary spasm is classified into focal- and diffuse-types according to morphological differences. We measured TAG and contrast enhancement of the proximal ostium (ProxHU) of each coronary artery for both the baseline and IV nitrate CT. Results Twenty-four patients (55.8%) showed positive results of coronary vasospasm on the provocation test. Thirty-eight vessels showed coronary spasms (29.5%): Focal-type in nine vessels (24%), and diffuse-type in 29 (76%). In the baseline CT, LCX showed significantly lower (steeper) TAG in spasm(+) vessels than in spasm(-) vessels, while LAD and RCA showed no significant differences in TAG. The ProxHU of LAD showed significantly lower values in spasm(+) vessels than in spasm(-) vessels, while the other vessels did not show significant differences in ProxHU. For IV nitrate CT, there were no significant differences in either the TAG and ProxHU between spasm(+) and (-) vessels for all the three vessel types. In subgroup analysis for spasm(+) vessels, diffuse spasms showed significantly lower TAG than focal spasms, while the ProxHU did not differ between the two types of spasm. Conclusions A relatively large percentage of coronary spasms present as diffuse type, and the TAG values significantly differed according to the morphological type of the coronary spasm.
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Dhanalakshmi B, Shijith KP, Sharma P. A prospective interventional study to assess the advantage of premedication with sublingual nitroglycerin in evaluation of peripheral vascular disease with computed tomography peripheral angiography. MEDICAL JOURNAL OF DR. D.Y. PATIL VIDYAPEETH 2022. [DOI: 10.4103/mjdrdypu.mjdrdypu_527_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Todoroski KB. The timing of administering aspirin and nitroglycerin in patients with STEMI ECG changes alter patient outcome. BMC Emerg Med 2021; 21:137. [PMID: 34784901 PMCID: PMC8597308 DOI: 10.1186/s12873-021-00523-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 10/19/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Both chewed aspirin and sublingual nitroglycerin are fast acting medications and reach therapeutic levels within a few minutes. Current guidelines for managing acute coronary syndrome (ACS) do not recognize the importance of the order or timing of administering aspirin and nitroglycerin. This retrospective study aimed to examine if there was any benefit to the timing of giving aspirin before or after nitroglycerin in cases of ACS. METHODS From the large National Emergency Medical Services Information System (NEMSIS) 2017 Version database, 2594 patients with acute coronary syndrome were identified (based on chest pain and their ECG finding) that received aspirin plus nitroglycerin in prehospital settings. Based on which medication was given first, the patients were separated in 2 groups: an aspirin-first and a nitroglycerin-first group. The 2246 patients who received aspirin first were further stratified based on the time between administration of aspirin and the first dose of nitroglycerin. The other 348 patients who received nitroglycerin first were similarly stratified. RESULTS In patients with STEMI ischemia, giving nitroglycerin 10 min after aspirin dosing (compared to giving them simultaneously) leads to a greater than 20% reduction in need for additional nitroglycerin, a greater than 7% decrease in subjective pain experienced by the patient and reduced need for additional opioids. The aspirin-first group in total, had a 39.6% decrease in subjective pain experience after giving additional nitroglycerin compared to nitroglycerin-first group. CONCLUSION In patients with ACS, this study found that giving nitroglycerin 10 min after aspirin was associated with a reduction in subjective pain scores, as well as a reduced need for additional nitroglycerin or opioids. Future prospective trials examining the timing of aspirin vs. nitroglycerin are needed to confirm these findings.
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Affiliation(s)
- Kristijan B Todoroski
- Family medicine department at univ. St. Kiril and Methodius in Skopje, Republic of North Macedonia, employed at Private family medicine clinic "Azura", Skopje, North Macedonia.
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Impact of Sublingual Nitroglycerin on the Assessment of Computed Tomography–derived Fractional Flow Reserve. J Comput Assist Tomogr 2021; 46:23-28. [DOI: 10.1097/rct.0000000000001244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Kang EJ, Lee J. Editorial for "Clinical Application of Non-Contrast-Enhanced Dixon Water-Fat Separation Compressed SENSE Whole-Heart Coronary MR Angiography at 3.0 T With and Without Nitroglycerin". J Magn Reson Imaging 2021; 55:592-593. [PMID: 34342926 DOI: 10.1002/jmri.27869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 07/21/2021] [Indexed: 11/09/2022] Open
Affiliation(s)
- Eun-Ju Kang
- Dong-A University Medical Center, Radiology, Busan, South Korea
| | - Jongmin Lee
- Department of Radiology, Kyungpook National University, School of Medicine, Jung Gu, Dong-Duk Ro 130, Daegu, Daegu, 41944, South Korea
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Using 320-detector row computed tomography angiography to investigate the arterial anatomy of the toe flaps on living humans. Surg Radiol Anat 2021; 43:1711-1719. [PMID: 34226966 DOI: 10.1007/s00276-021-02793-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 06/27/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE Using 320-detector row computed tomography angiography (320-CTA) to investigate the arterial supply for the toe flaps, namely the anatomical characteristics of the dorsalis pedis artery (DPA), the first dorsal metatarsal artery (FDMA), and the arteries of the first toe web space (AsFTWS). METHODS This was a prospective study on CTA of 72 intact feet of 36 Vietnamese adults who had sequelae of thumb or metacarpal hand amputation, from June 2017 to December 2019, then preoperative CTA images were compared with surgical findings on 31 feet of 29 patients. RESULTS 320-CTA was able to investigate the DPA, FDMA, and AsFTWS in 100% of cases. DPA was absent in 6.9% of cases. The average diameters at its origin and termination were 3.22 and 2.56 mm, respectively. For FDMA, the rates of Gilbert type I, II, and III were 52.8%, 18.1%, and 29.2%; the average diameters at its origin and termination were 1.98 and 1.67 mm, respectively. At the first toe web space, FDMA was dominant in 54.2% of cases; the first plantar metatarsal artery (FPMA) was dominant in 29.2% of cases; both arteries were equally dominant in 16.6%. The average diameter at the origin of the lateral plantar digital artery of the great toe was 1.48 mm, of the medial plantar digital artery of the second toe was 1.21 mm. Preoperative CTA images resembled the surgical findings in all cases. The survival rate of toe flaps was 100%. CONCLUSION The 320-CTA provided proper preoperative images in two and three dimensions, and helped surgeons to establish a preoperative surgical plan, thus increasing the success rate of toe transfer surgery.
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Quantitative evaluation of coronary artery visibility on CT angiography in Kawasaki disease: young vs. old children. Int J Cardiovasc Imaging 2020; 37:1085-1092. [PMID: 33044718 DOI: 10.1007/s10554-020-02054-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/29/2020] [Indexed: 12/19/2022]
Abstract
Coronary artery visibility on coronary CT angiography has rarely been investigated in young children with Kawasaki disease. This retrospective study was performed to quantitatively evaluate and compare coronary artery visibility with sufficient quality to measure it on coronary CT angiography among younger and older children with Kawasaki disease. Seventy-eight consecutive children with Kawasaki disease who underwent coronary CT angiography were divided into two groups: group 1 (age ≤ 6 years; n = 37) and group 2 (age > 6 years and < 18 years; n = 41). The visibility of the right coronary artery, left anterior descending artery, and left circumflex artery was quantitatively evaluated by dividing the length of the assessable coronary artery by the length of the corresponding groove, and compared between the two groups. The coronary artery visibility in group 1 was significantly lower than that in group 2 for the right coronary artery (77.8 ± 26.3% vs. 94.2 ± 13.6%, p < 0.002) and left anterior descending artery (54.8 ± 19.5% vs. 69.6 ± 21.3%, p < 0.003, but the difference was not significant for the left circumflex artery (43.7 ± 23.1% vs. 43.9 ± 26.7%, p > 0.9). In both groups, the visibility of the right coronary artery was the highest, followed by those of the left anterior descending artery and left circumflex artery. Compared with older children with Kawasaki disease, younger children with Kawasaki disease demonstrate significantly lower visibility of the right coronary artery and left anterior descending artery on coronary CT angiography. In contrast, the visibility of the left circumflex artery showed no significant difference between younger and older children with Kawasaki disease.
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Nitrates administered by spray versus tablet: comparison of coronary vasodilation on CT angiography. Eur Radiol 2020; 31:515-524. [PMID: 32785771 DOI: 10.1007/s00330-020-07104-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 05/04/2020] [Accepted: 07/22/2020] [Indexed: 10/23/2022]
Abstract
OBJECTIVES To compare the coronary vasodilation effects of spray with those induced by tablet administration in coronary CT angiography (CCTA). METHODS A total of 2024 patients who underwent CCTA were identified for this retrospective study, including 828 patients with spray (spray group) and 1169 with tablets (tablet group). Of these, 93 patients underwent CCTA at least twice using both spray and tablets. The number of measurable segments and diameters of all 18 segments was measured. The number of measurable segments was compared between groups. RESULTS No statistically significant differences were evident between these two groups in terms of clinical characteristics. All coronary segments except the ramus intermedius (RI) and left posterior descending artery (L-PDA) were significantly larger in the spray group than in the tablet group (all p < 0.001). In peripheral and branch vessels, as well as in central and main coronary arteries, the diameters were significantly larger in the spray group than in the tablet group (all p < 0.001). Although not always statistically significant, all coronary segments tended to be more measurable on CCTA with spray than with tablet. In the subgroup that underwent CCTA twice using both spray and tablets, all coronary segments except the RI, obtuse marginal artery 2 (OM2), and L-PDA were significantly larger in the spray group than in the tablet group (all p < 0.05). CONCLUSION Lingual isosorbide dinitrate (ISDN) spray was more efficacious than sublingual nitroglycerin (NTG) tablets in coronary vasodilation for CCTA. Therefore, lingual ISDN spray should be preferred over sublingual NTG tablets for CCTA. KEY POINTS • Lingual ISDN spray was more efficacious than sublingual NTG tablet for coronary vasodilation in coronary CT angiography, even in elderly patients. • The diameters of all coronary segments except RI and L-PDA were significantly larger, and there were significantly more coronary segments greater than 1.5 mm, except RI and L-PDA, in the spray group than in the tablet group in the whole study group. • Even in peripheral and branch vessels, the diameters of coronary arteries were significantly larger in the spray group than in the tablet group, and they were also larger in elderly patients.
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Kim MS, Kang EJ, Kim HJ, Kim MH, Lee KN. The Effects of a Vasodilator on Transluminal Attenuation Gradient at Coronary Computed Tomography Angiography. Korean J Radiol 2020; 21:1285-1293. [PMID: 32767863 PMCID: PMC7689139 DOI: 10.3348/kjr.2019.0908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 04/11/2020] [Accepted: 04/22/2020] [Indexed: 11/15/2022] Open
Abstract
Objective To evaluate the effects of vasodilators on contrast enhancement and transluminal attenuation gradient (TAG) of coronary arteries at coronary computed tomography angiography (CCTA). Materials and Methods We retrospectively reviewed CCTA scans of patients who underwent double-acquisition CCTA; CCTA without a vasodilator, and CCTA during a intravenous (IV) infusion of nitrate. Among them, we enrolled 19 patients who had no significant atherosclerotic lesions or coronary spasms. In the control group, 28 patients were enrolled who showed normal coronary arteries on CCTA, which was acquired by a conventional method (sublingual vasodilator). We measured the TAG and Hounsfield units for each of the three major epicardial coronary arteries (reported as ‘ProxHU’) and then compared the results between the nitrate administration methods (CT without vasodilator [CTpre], CT with IV vasodilator [CTiv], and CT with sublingual vasodilator [CTsub]). Results The mean TAG showed a significant difference between the coronary arteries (right coronary artery [RCA] > left anterior descending artery [LAD] > left circumflex artery [LCX], p < 0.05), while there was no difference in ProxHU of each coronary artery in all three types of nitrate administration methods (p > 0.05). The TAG of CTpre group showed steeper slope than those of vasodilator groups (CTiv and CTsub) on LAD and LCX ([LAD: CTpre = −22.1 ± 6.66, CTiv = −16.76 ± 5.78, and CTsub = −16.47 ± 5.78, p = 0.005], [LCX: CTpre = −31.26 ± 17.43, CTiv = −23.74 ± 14.06, and CTsub = −20.94 ± 12.15, p = 0.051]), while that of RCA showed no significant differences (p = 0.600). When comparing proxHU, CTiv showed higher proxHU than that of CTpre or CTsub, especially on LCX (CTpre = 426.7 ± 68.3, CTiv = 467.9 ± 84.9, and CTsub = 404.9 ± 63.3, p = 0.013). ProxHU showed a negative correlation with TAG on all three of methods (r = −0.280, p < 0.001). Conclusion TAG in CCTA was significantly affected by vasodilator administration. Both TAG and ProxHU of coronary arteries tend to increase with vasodilator administration on CCTA.
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Affiliation(s)
- Moon Sung Kim
- Department of Radiology, College of Medicine, Dong-A University, Busan, Korea
| | - Eun Ju Kang
- Department of Radiology, College of Medicine, Dong-A University, Busan, Korea.
| | - Hyun Jin Kim
- Department of Radiology, College of Medicine, Dong-A University, Busan, Korea
| | - Moo Hyun Kim
- Department of Cardiology, College of Medicine, Dong-A University, Busan, Korea
| | - Ki Nam Lee
- Department of Radiology, College of Medicine, Dong-A University, Busan, Korea
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Kutaiba N, Lukies M, Galea M, Begbie M, Smith G, Kearney L, Spelman T, Lim RP. The effects of sublingual nitroglycerin administration in coronary computed tomography angiography. Clin Imaging 2020; 60:194-199. [DOI: 10.1016/j.clinimag.2019.11.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 11/04/2019] [Accepted: 11/26/2019] [Indexed: 11/16/2022]
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Utility of Preoperative Multidetector-Row Computed Tomographic Angiography after Sublingual Nitroglycerin with Three-Dimensional Reconstruction in Planning of the Anterolateral Thigh Flap. Plast Reconstr Surg 2020; 145:407e-411e. [DOI: 10.1097/prs.0000000000006507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lu NH, Liu YS, Liu KI, Hsu SY, Huang YH, Sun CK, Chen TB. Questionable necessity of nitroglycerin for diagnostic coronary artery examination using 320-row multi-detector computed tomography. JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY 2020; 28:989-999. [PMID: 32741800 DOI: 10.3233/xst-200652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
OBJECTIVE This study aims to analyze and compare the diagnostic effectiveness of 320-row multi-detector computed tomography for coronary artery angiography (MDCTA) in subjects with and without sublingual vasodilator (nitroglycerin). MATERIALS AND METHODS From September 2015 to September 2016, 70 individuals without history of major cardiovascular diseases who underwent MDCTA for health examination were retrospectively categorized into sublingual nitroglycerin (NTG) and non-NTG groups. Medical history, CT dose index (CTDI), and multi-slice CT images were compared between two groups. A diameter of coronary artery (DA, mm) was computed and analyzed. RESULTS A total of 41 males and 29 females (mean age: 55.43±8.84 years, range: 34- 76) were reviewed. Normal and abnormal MDCTA findings were noted in 54 and 16 participants, respectively, with the detection rate of coronary artery disease being 23%. There was no significant difference in inter-observer variability of coronary CTA image quality and diagnosis between the NTG and non-NTG groups among three experienced radiologists. Although the percentage dilatation of left anterior descending branch (LAD), right coronary artery (RCA) and left circumflex branch (LCX) following in the NTG group were 12.4%, 12.8% and 25.3%, respectively (p < 0.01), there was no significant difference in image quality and diagnosis between the two groups. CONCLUSIONS Despite the recommendation of routine nitroglycerin use for subjects undergoing computed tomography for coronary artery angiography, our results showed no significant advantage of its use in improving image quality and rate of diagnosis accuracy.
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Affiliation(s)
- Nan-Han Lu
- Department of Pharmacy, Tajen University, Pingtung, Taiwan
- Department of Radiology, E-Da Hospital/I-Shou University, Kaohsiung, Taiwan
- Department of Medical Imaging and Radiological Sciences, I-Shou University, Kaohsiung, Taiwan
| | - Yi-Shan Liu
- Department of Pharmacy, Tajen University, Pingtung, Taiwan
- Department of Dermatology, E-Da Hospital/I-Shou University, Kaohsiung, Taiwan
| | - Ko-In Liu
- Department of Medical Imaging and Radiological Sciences, I-Shou University, Kaohsiung, Taiwan
- Department of Radiology, E-Da Cancer Hospital, I-Shou University, Kaohsiung, Taiwan
- Department of Information Engineering, I-Shou University, Kaohsiung, Taiwan
| | - Shih-Yen Hsu
- Department of Medical Imaging and Radiological Sciences, I-Shou University, Kaohsiung, Taiwan
- Department of Radiology, E-Da Cancer Hospital, I-Shou University, Kaohsiung, Taiwan
- Department of Information Engineering, I-Shou University, Kaohsiung, Taiwan
| | - Yung-Hui Huang
- Department of Medical Imaging and Radiological Sciences, I-Shou University, Kaohsiung, Taiwan
| | - Cheuk-Kwan Sun
- Department of Emergency Medicine, E-Da Hospital, Kaohsiung, Taiwan
- School of Medicine for International Students, I-Shou University, Kaohsiung, Taiwan
| | - Tai-Been Chen
- Department of Medical Imaging and Radiological Sciences, I-Shou University, Kaohsiung, Taiwan
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Impact of sublingual nitroglycerin dosage on FFRCT assessment and coronary luminal volume–to–myocardial mass ratio. Eur Radiol 2019; 29:6829-6836. [DOI: 10.1007/s00330-019-06293-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/02/2019] [Accepted: 05/29/2019] [Indexed: 10/26/2022]
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The Value of 16-cm Wide-Detector Computed Tomography in Coronary Computed Tomography Angiography for Patients With High Heart Rate Variability. J Comput Assist Tomogr 2018; 42:906-911. [PMID: 30119063 DOI: 10.1097/rct.0000000000000787] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The aim of this study was to investigate radiation dose and image quality of coronary computed tomography (CT) angiography (CCTA) for patients with high heart rate variability (HRv) using 16-cm wide-detector CT scanner. METHODS One hundred sixty-six patients with uncontrolled heart rate underwent CCTA on a 16-cm wide-detector CT system and were divided into 2 groups based on their HRv for analysis: group A (n = 95, HRv ≤10 beats/min [bpm]) and group B (n = 71, HRv >10 bpm). Images in both groups were reconstructed with motion correction algorithm. Subjective and objective image qualities were analyzed. RESULTS There were no significant differences in age, body mass index, and heart rate (68.1 ± 11.4 vs 67.6 ± 12.3 bpm) between the 2 groups (P > 0.05). However, group B had significantly higher HRv than group A (33.5 ± 24.4 vs 7.8 ± 1.2 bpm, P < 0.001). All images were acceptable for clinical diagnosis. Compared with group A, image quality scores in group B decreased slightly (4.1 ± 0.5 vs 4.0 ± 0.6). However, the difference was not statistically significant. The mean effective doses were both relatively low at 2.2 ± 1.1 mSv in group A and 2.6 ± 1.4 mSv in group B. CONCLUSIONS Single-heartbeat free-breathing CCTA can be performed for patients with high HRv using 16-cm wide-detector CT scanner to achieve diagnostic image quality with low radiation dose.
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Ng MY, Karimzad Y, Menezes RJ, Wintersperger BJ, Li Q, Forero J, Paul NS, Nguyen ET. Randomized controlled trial of relaxation music to reduce heart rate in patients undergoing cardiac CT. Eur Radiol 2016; 26:3635-42. [DOI: 10.1007/s00330-016-4215-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 10/22/2015] [Accepted: 01/13/2016] [Indexed: 10/22/2022]
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Okada M. Author's reply. J Cardiol 2015; 66:539-40. [PMID: 26362591 DOI: 10.1016/j.jjcc.2015.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 03/16/2015] [Indexed: 11/26/2022]
Affiliation(s)
- Munemasa Okada
- Yamaguchi University Graduate School of Medicine, Ube, Japan.
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Sublingual Nitroglycerin Administration in Coronary Computed Tomography Angiography: a Systematic Review. Eur Radiol 2015; 25:3536-42. [PMID: 25994194 PMCID: PMC4636517 DOI: 10.1007/s00330-015-3791-3] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Revised: 03/30/2015] [Accepted: 04/09/2015] [Indexed: 01/12/2023]
Abstract
OBJECTIVE To systematically investigate the literature for the influence of sublingual nitroglycerin administration on coronary diameter, the number of evaluable segments, image quality, heart rate and blood pressure, and diagnostic accuracy of coronary computed tomography (CT) angiography. METHODS A systematic search was performed in PubMed, EMBASE and Web of Science. The studies were evaluated for the effect of sublingual nitroglycerin on coronary artery diameter, evaluable segments, objective and subjective image quality, systemic physiological effects and diagnostic accuracy. Due to the heterogeneous reporting of outcome measures, a narrative synthesis was applied. RESULTS Of the 217 studies identified, nine met the inclusion criteria: seven reported on the effect of nitroglycerin on coronary artery diameter, six on evaluable segments, four on image quality, five on systemic physiological effects and two on diagnostic accuracy. Sublingual nitroglycerin administration resulted in an improved evaluation of more coronary segments, in particular, in smaller coronary branches, better image quality and improved diagnostic accuracy. Side effects were mild and were alleviated without medical intervention. CONCLUSION Sublingual nitroglycerin improves the coronary diameter, the number of assessable segments, image quality and diagnostic accuracy of coronary CT angiography without major side effects or systemic physiological changes. KEY POINTS • Sublingual nitroglycerin administration results in significant coronary artery dilatation. • Nitroglycerin increases the number of evaluable coronary branches. • Image quality is improved the most in smaller coronary branches. • Nitroglycerin increases the diagnostic accuracy of coronary CT angiography. • Most side effects are mild and do not require medical intervention.
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Studies with radiation-based imaging techniques: Where to stop? J Cardiol 2015; 66:539. [PMID: 25921243 DOI: 10.1016/j.jjcc.2015.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 03/06/2015] [Indexed: 11/22/2022]
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