Cuspidi C, Facchetti R, Bombelli M, Seravalle G, Grassi G, Mancia G. Clin Res Cardiol. Aorta size is related most strongly to body surface area (BSA) and age. Step 3: The BSA and Maximum SOV Diameter (Aortic Root Diameter) is Calculated. Differences among age, sex, and racial groups were evaluated using unpaired two-tailed Student's t tests. and transmitted securely. Asch FM, Miyoshi T, Addetia K, Citro R, Daimon M, Desale S, Fajardo PG, Kasliwal RR, Kirkpatrick JN, Monaghan MJ, Muraru D, Ogunyankin KO, Park SW, Ronderos RE, Sadeghpour A, Scalia GM, Takeuchi M, Tsang W, Tucay ES, Tude Rodrigues AC, Vivekanandan A, Zhang Y, Blitz A, Lang RM; WASE Investigators. Join us in the fight for victory over genetic aortic and vascular conditions. JACC Cardiovasc Imaging. The primary aim of this study was to investigate if ASI is a predictor of development AAA, and to compare the predictive impact of ASI to that of the absolute AD. All of the references This site needs JavaScript to work properly. Eur Cardiol. Mean Platelet Volume to Platelet Count Ratio Predicts Left Atrial Stasis in Patients with Non-Valvular Atrial Fibrillation I just wanted to let you know that even though I'm looking quite old, I'm still a millenial. The aortic size criterion is extremely valuable, having held up clinically over the years as a dependable . There was a straight correlation between aortic diameters (absolute and indexed values), their ratios, and age in both genders (p= 0.0001). The aortic root is located between the aortic annulus (the junction of the outflow tract of the left ventricle and the aortic valve) and the sinotubular junction (where the ascending aorta originates). In 1,207 apparently normal subjects 15 years old (54% women), aortic root diameter was 2.1 to 4.3 cm. The site is secure. Berthelot-Richer M, Pibarot P, Capoulade R, Dumesnil JG, Dahou A, Thebault C, Le Ven F, Clavel MA. 2016 Nov;9(11):e005121. Aortic root dimensions indexed by annulus. Congenital Heart Disease and Pediatric Cardiology, Invasive Cardiovascular Angiography and Intervention, Pulmonary Hypertension and Venous Thromboembolism, ACC Anywhere: The Cardiology Video Library, CardioSource Plus for Institutions and Practices, Annual Scientific Session and Related Events, ACC Quality Improvement for Institutions Program, National Cardiovascular Data Registry (NCDR). The standard size of the aortic root is between 29 and 45 millimeters. Therefore, 2-D measurements have now replaced the MMode. Cassottana P, Badano L, Piazza R, Copello F. Wenzel JP, Petersen E, Nikorowitsch J, Senftinger J, Sinning C, Theissen M, Petersen J, Reichenspurner H, Girdauskas E. Int J Cardiovasc Imaging. To determine whether we were allowed to calculate common scaling exponents for the whole group of men and women, gender was included as a dummy variable in the analysis. HHS Vulnerability Disclosure, Help 2021 Mar;34(3):286-300. doi: 10.1016/j.echo.2020.11.004. Height Alone, Rather Than Body Surface Area, Suffices for Risk Estimation in Ascending Aortic Aneurysm. Of note, the upper limits of normal for all aortic dimensions were lower across all age groups, compared with the guidelines. Upon dissection watch: Location of dissection The aortic annulus is a crown-shaped structure that serves as the insertion point for the aortic cusps. Accessibility Cut-off values for severe stenosis are <1.0 cm2 for AVA and <0.6 cm2/m2 for AVAindex. There were no differences between athletes and controls when the aortic diameter was indexed for BSA (15.52.0 mm/m 2 (range 8.5-26.0 mm/m 2) . The Print Rooms Roman et al. This is because BSA was previously found to have a greater association with thoracic aortic diameter than BMI does (6,7), and BSA was the body size variable that entered into selection models most frequently. All studies were reviewed and analyzed off-line by 2 independent observers. Our final study population therefore consisted of 1,043 healthy subjects (mean age 44.7 15.9years, range 16 to 92years, 503 men [48%]). The biological variables recognized to influence aortic root size include age, sex, indexes of body size, systolic and diastolic blood pressures, and stroke volume. 1,2 This is based on a sharp rise in the risk of . consolidates the reporting of z-scores and reference ranges for the aortic root, based on numerous available publications. The aim of the present study was to assess the potential differences in aortic root measurements when aortic root Z-scores were obtained in a cohort of paediatric Marfan patients using several published nomograms. In addition, 23 of the initial subjects investigated refused to be included in the echocardiographic protocol. The rationale for all suggested changes to practice are discussed in the guideline document. The aorta gradually narrows as it moves down through the chest. However, weight might not contribute substantially to aortic size and growth. Unable to load your collection due to an error, Unable to load your delegates due to an error. Look up reference values adjusted for age, gender, and body size for the aortic root (aortic valve and sinus of valsalva) using data published in the american journal of. Android privacy policy Unauthorized use of these marks is strictly prohibited. Because the correlation coefficients between aortic diameters, height, and weight raised to the specific allometric exponent were similar to those of aortic diameters versus baseline height and weight, no exponential values were included in the multivariate models. Measurements, indexed separately by BSA and by height, included the aortic annulus, sinuses of Valsalva, and sinotubular junction. . Calculation of percentiles utilizes the published averages and standard deviations for the binned age and BSA groups and assumes a normal distribution of size diameters within each interval. Example of 2D echocardiographic measurements, Example of 2D echocardiographic measurements of aortic dimensions at the level of the, Nomograms of aortic dimensions at the SoV level according to different calculated BSA,, Nomograms of aortic dimensions at the SoV level according to different heights for, MeSH Data analysis was performed using SYSTAT, version 12 (University of Illinois, Chicago, Illinois). Am J Cardiol. Gross anatomy. Generally, an aneurysm expands over a period at the rate of 10% per annum. Background: Design. The intraobserver variability analysis revealed Pearson correlations as follows: r= 0.90 (p <0.0001) for the aortic annulus, r= 0.97 (p <0.0001) for the sinuses of Valsalva, r= 0.96 (p <0.0001) for the sinotubular junction, and r= 0.86 (p <0.0001) for the maximum diameter of the proximal ascending aorta. The https:// ensures that you are connecting to the Z-scores of the aortic root (aortic annulus, sinuses of Valsalva, sinotubular junction, and ascending aorta) are commonly reported for conditions such as Marfan syndrome, bicuspid aortic valve, and Kawasaki disease. Normal limits in relation to age, body size and gender of two-dimensional echocardiographic aortic root dimensions in persons 15 years of age. Am J Cardiol. Aortic diameters and long-term complications among 780 patients with TAAA were analyzed. The results of their multivariable analysis showed valve dimensions correlate poorly to body size variables, specifically BSA (r = 0.01 for aortic valves and r = 0.10 for pulmonary valves . BSA was calculated according to the DuBois formula [0.20247 height (m) 0.725 weight (kg) 0.425]. Calculator How to get Maximum SOV Diameter. For patients up to 25 years of age: utilizing systole, inner to inner edge measurement of the sinuses of valsalva according to personal communication from Steve Colan. New-onset aortic dilatation in the population: a quarter-century follow-up. Using data from the World Alliance Societies of Echocardiography study, the authors sought to establish normal ranges of aortic dimensions across sexes, races, and a wide range of ages. Changes in the assessment of the aortic root: Aortic dimensions now indexed for height and not BSA, Should be obtained in end-diastole using inner-edge to inner-edge method, Whereas previously there were different reference ranges for aortic dimensions according to age, the Society now produces age-independent ranges for men and women. This site needs JavaScript to work properly. The subjects underwent voluntary (or for work abilityassessment) full screening for cardiovascular disease including a questionnaire about medical history, use of medications, cardiovascular risk factors, and lifestyle habits (alcohol intake, smoking, and physical activity). National Library of Medicine Marfan's syndrome, a genetic disorder affecting fibrillin synthesis . Maximum aortic diameter in the area of the. Allometric equations were used to determine the relations of aortic diameters with weight and height. The specific manner in which these measurements are obtained is of obvious importance. Sex Age [years] 60 Height [cm] 175 Weight [kg] 80 ascending aorta diameter, mean [mm] ascending aorta diameter, +2SD [mm] (threshold diameter) ascending aorta length, mean [mm] The aorta is the main trunk of the arterial system, carrying oxygenated blood from the heart to the body. Prog Cardiovasc Dis. This calculator J Am Soc Echocardiogr. Left ventricular (LV) mass was calculated by the Penn convention and indexed for BSA. 2008;1 (2):200-209. Step 2: Click the Calculate Button . Don't worry, my wisdom won't change. Multiple regression analysis for aortic diameters in relation to age, gender, body mass index, weight, and height was applied. An official website of the United States government. AHI categories 3.05-3.69, 3.70-4.34, and 4.35 cm/m were associated with a significantly increased risk of complications (p < 0.05). Annulo-aortic ectasia is a combination of: 1) ascending aortic aneurysm 2) dilatation of the sinuses of Valsalva and 3) dilatation of the aortic annulus. Pulsed and continuous-wave Doppler interrogations were performed on all 4 cardiac valves. A diameter of < 40 mm and a ratio left atrium/aortic root of < 1.3 are considered normal. In some circumstances, the Society has chosen to deviate from the combined European and American guidance. So I just had a "New Year, New Me" moment and my resolution is to become a new and improved version of myself in a couple of weeks. Copyright 2000-2023 JLS Interactive, LLC. sharing sensitive information, make sure youre on a federal BSA 65 <1.70 1.70-1.89 1.90-2.09 2.10 3) Calculator uses expected aortic diameter from sex-, age- and BSA-stratified nomograms and SD from sex-, age- and BSA-stratified table (see Notes Worksheet) 4) The condensed yellow columns from J to BE are for conversion and coding purposes and may be ignored Predicted Diameter Female <45yr Aortic Valve Annulus (mm): Sinus of Valsalva (mm): Sino-Tubular Junction (mm): Ascending Aorta (mm): Note: the study population had the following characteristics: age range: (0 - 17) bsa range: (0.12 - 2.12) Data entered for patients outside of these limits should be used with caution. Indexed body surface area aortic diameters, stratified by age and gender, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Google+ (Opens in new window), on Normal Values of Aortic Root Dimensions in Healthy Adults, Aortic Root Dimensions and Stiffness in Healthy Subjects, Advances in Catheter Ablation of Primary Ventricular Fibrillation, Normal Values and Differences in Ascending Aortic Diameter in a Healthy Population of Adults as Measured by the Pediatric versus Adult American Society of Echocardiography Guidelines, Heart Rate Recovery After Exercise in Adults With the Down Syndrome, Standardizing the Method of Measuring by Echocardiogram the Diameter of the Ascending Aorta in Patients With a Bicuspid Aortic Valve, Reference Values of Tricuspid Annular Peak Systolic Velocity in Healthy Pediatric Patients, Calculation of Z Score, and Comparison to Tricuspid Annular Plane Systolic Excursion, Left Ventricular and Ascending Aortic Function After Stenting of Native Coarctation of Aorta, American Journal of Cardiology Volume 114 Issue 6. 2022 Oct;52(10):721-736. doi: 10.4070/kcj.2022.0234. Unauthorized use of these marks is strictly prohibited. All aortic root dimensions were larger in men compared with women. Any change in the value will pose trouble for any individual because the contraction and expansion make it difficult for the blood to flow smoothly through the aorta. When compared with an aortic aneurysm, an aneurysm developing to the aortic root is fatal because it causes aortic valve leakage. Background: A total of 190 untreated and treated essential hypertensive patients (mean age, 5511 years) were considered for this analysis. Select a calculator from the menu above. Demographics and clinical characteristics, LV dimensions, and aortic diameters, both absolute and relative to BSA, are presented as mean SD and were tested by unpaired t test to evaluate differences between genders. Ligurian Group of SIEC (Italian Society of Echocardiography)]. The Society no longer advocates division into mild or moderate LV impairment, Measured using the Biplane Simpsons method and indexed to BSA, A new borderline LA volume range of 34-38ml/m. 8910 Studies that evaluated the determinants of aortic root size, however, have not yielded uniform results. Risk stratification was performed using regression models. The study was approved by theinstitutions Ethics Board, and informed consent was obtained from the participants. 2D echocardiography; Aorta; Aortic root dimensions. The predictive value of AHI and aorta diameter indexed to BSA (aortic size index [ASI]) was compared. 10 considered three age strata: younger than 20 years, 20-40 years, and older than 40 years by published equations. Published by at june 13, 2022. Specific measurements were made by the average of 5 cardiac cycles. Adjusting parameters of aortic valve stenosis severity by body size. That's Why Valley Developed The. Among cardiovascular imaging techniques, 2-dimensional transthoracic color Doppler echocardiography (TTE) is widely available, safe, and cost-effective, and thus, it represents an excellent first-line screening tool toevaluate the aortic root (AR) morphology and dimensions. . three aortic sinuses of Valsalva: intraluminal . To account for differences in body size in patients with aortic stenosis, aortic valve area (AVA) is divided by body surface area (BSA) to calculate indexed AVA (AVAindex). 8F?JOd:xOj1c/%#E1RUBVB7H:aLo C(5 52cz"6B.Lp;oW%WfaX'l}Cw#d O*j9t\mkrFY{ 2N,;g@t\@"V 3qM.7Z9=9B:~"TIo; E/#C;%2' PK ! Sinus of Valsalva aneurysms can be either congenital or acquired. Aortic Root Index AVA (Continuity Equation VMax) AVA (Continuity Equation VTI) . The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). The aorta begins at the aortic valve, where it branches off from the left ventricle of the heart. In this case, the swelling occurs in the wall of the root of the aorta. E s xl/_rels/workbook.xml.rels ( j0}}?{Rv !FV?}k%o3!|9C?|M kkKE`-jS ~z4lz@vooHOPFbP0}9* v`hJWNgI'?9mVlG_;tx&3j ?\ZH BSA: m 2; LV Long Axis Z-Score: Aortic Root Z-Score: Score: The result gives the predicted difference in percent survival for Norwood minus . We seek to evaluate the height-based . Population-based . Discordant Grading of AorticStenosisSeverity: Echocardiographic Predictors of Survival Benefit AssociatedWith Aortic Valve Replacement. You're still going to find the same useful information here. 2022 Mar;35(3):275-277. doi: 10.1016/j.echo.2021.12.001. However, little is known about the underlying disease mechanisms. aortic root dilatation (ARD) in essential hypertensive patients. The aortic size index (ASI) is defined as the AD divided by BSA. The interobserver and intraobserver variabilities were examined using both Pearson bivariate 2-tailed correlations and Bland-Altman analysis. The aortic annulus was measured at mid-systole using the inner edge to inner edge method. Devereux RB, de Simone G, Arnett DK, Best LG, Boerwinkle E, Howard BV, Kitzman D, Lee ET, Mosley TH Jr, Weder A, Roman MJ. Turner syndrome (TS) is a relatively common chromosomal disorder affecting 1/2000 live-born girls. [Content_Types].xml ( UN0#q)jpic- 31P!EU+KL7YwHhixJwDQ.xP/XpJDZJ54 Last, differences in aortic dimensions were also observed according to race: Asians had the smallest nonindexed aortic dimensions at all levels. You're still going to find the same useful information here. Please quote your membership PMC TAA size is the strongest predictor of acute aortic syndromes. We previously introduced the aortic size index (ASI), defined as aortic size/body surface area (BSA), as a predictor of aortic dissection, rupture, and death. 1. Singh M, Sethi A, Mishra AK, Subrayappa NK, Stapleton DD, Pellikka PA. J Am Heart Assoc. A rot size of 3,8 cm in a tall individual may be normal for example, but a 3,6 cm root may be enlarged in a very small. doi: 10.1016/j.echo.2019.08.012. The .gov means its official. However, especially among obese individuals, weight probably does not play as important a role as does height in indexing various measures to body size. Historical reference intervals have often been derived from studies or echo databases that included relatively small numbers of patients. An enlarged aortic root is similar to that of an aneurysm. Please enable it to take advantage of the complete set of features! Epub 2016 May 18. It then runs up the chest, behind the breastbone, and down the . The Bland-Altman analysis gave a 95% confidence interval of 4.1 1.1% for the aortic annulus, 3.9 1.1% for the sinuses of Valsalva, 4.1 1.1% for the sinotubular junction, and 4.8 1.3% for the maximum diameter of the proximal ascending aorta. The absolute aortic diameters were significantly greater in men than in women at all levels, whereas BSA-indexed aortic diameters were greater in women ( Table2 ). 2020 Jan 21;9(2):e014609. Aortic dimensions were larger in older age groups in both sexes, a trend that persisted regardless of BSA or height adjustment. Changes in the reference intervals for LV ejection fraction: A new borderline low LV ejection fraction group of 50-54%, Patients with an LV ejection fraction of 36-49% are defined as impaired LV ejection fraction. You may email this form to yourself to include in your patient file. 1 It is caused by complete or partial loss of a second sex chromosome, with or without cell line mosaicism. The Gorlin equation. So I just had a "New Year, New Me" moment and my resolution is to become a new and improved version of myself in a couple of weeks. Allometric scaling approach for normalization was applied. Enter the Height, Weight, and Age of the Patient. Cookie policy. The entire aorta divides into two parts: the thoracic aorta and the abdominal aorta. The Bland-Altman analysis gave a 95% confidence interval of5.1 1.1% for the aortic annulus, 4.1 1.2% for the sinuses of Valsalva, 4.3 1.1% for the sinotubular junction, and 5.1 1.5% for the maximum diameter of the proximal ascending aorta. Copyright 2015 - 2016 Radiology Universe Institute, a public benefit corporation. and transmitted securely. In this study, the authors found that a simpler measure of aortic diameter indexed to height had similar predictive power compared to aortic diameter indexed to bsa. MeSH British Society of Echocardiography TTE measurements of the AR were made at end-diastole in parasternal long-axis views at 4 levels: (1) annulus, (2) sinuses of Valsalva, (3) sinotubular junction, and (4) proximal ascending aorta. Derivation from the graph published in the article (figure 2) was therefore necessary. Circulation2009;120 (suppl 2):s540. No significant gender differences were registered for sinuses of Valsalva, sinotubular junction to annulus diameter ratios, whereas ascending aorta to annulus diameter ratio was higher in women ( Table3 ). From June 2007 to December 2013, a sample of 1,142 consecutive apparently health adults were referred to echocardiographic laboratories of the Department of Cardiology and Emergency Medicine of San Antonio Hospital, San Daniele del Friuli, Udine, Italy and Division of Cardiology, Cava de Tirreni-Amalfi Coast, Heart Department, University Hospital of Salerno, Italy, for the purpose of presentstudy. Bethesda, MD 20894, Web Policies Soulat-Dufour L, Addetia K, Miyoshi T, Citro R, Daimon M, Fajardo PG, Kasliwal RR, Kirkpatrick JN, Monaghan MJ, Muraru D, Ogunyankin KO, Park SW, Ronderos RE, Sadeghpour A, Scalia GM, Takeuchi M, Tsang W, Tucay ES, Tude Rodrigues AC, Vivekanandan A, Zhang Y, Diehl M, Schreckenberg M, Mor-Avi V, Asch FM, Lang RM; WASE Investigators. Its highest and lowest points are located at each of the three commissures and between any two of them, respectively. The aortic root is the largest artery in the body, with a diameter of approximately 4 cm, followed by the ascending aorta, . International guidelines use uncorrected aortic diameter to estimate the risks of aortic dissection, rupture, or death among patients with TAAA. 8600 Rockville Pike There was a linear correlation between the aortic diameters (absolute and indexed values) and their ratios with age in both genders, except for the aortic annulus (p= 0.0001; Figures1 and 2 ). Methods: Conclusions . 2014 Jul-Aug;57(1):47-54. doi: 10.1016/j.pcad.2014.05.006. The ascending aorta is about 5 to 8 centimeters (or close to 2 to 3 inches) long. Stroke volume index = Stroke volume in mL / Body surface area in m 2. Epub 2020 Jan 9. Published by Elsevier Inc. All rights reserved. ASI (cm/m2) 2.05, 2.08-2.95, 3.00-3.95, and 4; and AHIs (cm/m) of 2.43, 2.44-3.17, 3.21-4.06, and 4.1 were associated with a 4%, 7%, 12%, and 18% average yearly risk of complications, respectively. Aortic dimensions decrease from sinuses of Valsalva to the descending aorta. Aortic Root Z-Scores for Children. However, weight might not contribute substantially to aortic size and growth. The major problem of the MMode is that perpendicular orientation to the left atrium may not be possible. Epub 2014 Apr 29. The function of the normal sinuses is to prevent occlusion of the coronary artery ostia during systole when the aortic valve opens. Clinical Topics: Cardiac Surgery, Invasive Cardiovascular Angiography and Intervention, Noninvasive Imaging, Prevention, Vascular Medicine, Aortic Surgery, Cardiac Surgery and Arrhythmias, Interventions and Imaging, Interventions and Vascular Medicine, Keywords: Aneurysm, Dissecting, Aortic Aneurysm, Thoracic, Aortic Rupture, Body Size, Body Surface Area, Body Weight, Cardiac Surgical Procedures, Diagnostic Imaging, Dissection, Risk, Secondary Prevention, Vascular Diseases. Median age was 52 years, and 396 (40%) were men. PK ! . J Am Coll Cardiol Img. Transthoracic echocardiographic reference values of the aortic root: results from the Hamburg City Health Study. The https:// ensures that you are connecting to the An aneurysm is a weak spot in a blood vessel wall. The partial correlation test by the Pearson method was used to assess clinically relevant variables with p <0.05, which were then incorporated into the multivariate model. Similarities and Differences in Left Ventricular Size and Function among Races and Nationalities: Results of the World Alliance Societies of Echocardiography Normal Values Study. Twenty anaesthetized young pigs, 42 2 (standard deviation) kg on standardized tepid cardiopulmonary bypass (CPB) were randomized (10 per group) to depolarizing or polarizing cardiac arrest for 60 min with cardioplegia administered in the aortic root every 20 min as freshly mixed cold, intermittent, oxygenated blood. Normal Values of Right Atrial Size and Function According to Age, Sex, and Ethnicity: Results of the World Alliance Societies of Echocardiography Study. doi: 10.15420/ecr.2022.26. 164-180 Union Street Aortic Nomograms are described in the peer reviewed paper: Normal limits in relation to age, body size and gender of two-dimensional echocardiographic aortic root dimensions in persons 15 years of age. The LV ejection fraction was calculated by the Simpson equation in the apical 4- and 2-chamber views. Objective: Devereux RB, de Simone G, Arnett DK, Best LG, Boerwinkle E, Howard BV, Kitzman D, Lee ET, Mosley TH Jr, Weder A, Roman MJ. ( 20 ), in which the diameter of each segment of the aorta and BSA Hypertension has also been frequently reported to increase the diameters of large arteries . Three BP measurements were obtained from the right arm with a mercury manometer, and the results were averaged to determine systolic and diastolic BPs. Five-year complication-free survival was progressively worse with increasing ASI and AHI. Web at an aortic root size in the small normal range of 2.0 to 2.4 cm, the prevalence of aortic regurgitation was 0% to 15%. (Also see this page for reference values for adults.). Transthoracic two-dimensional echocardiograms of 1,585 subjects (mean age, 47 17 years; 50.4% men; mean body surface area [BSA], 1.77 0.22 m2) were analyzed in a core laboratory following American Society of Echocardiography guidelines. The AA is considered dilated or ectatic when its size is 1.1 to 1.5 times larger than the normal and aneurismal when its size exceeds the limits defining dilatation 3, 4. The sinuses of Valsalva and sinotubular junction were measured at end-diastole using leading edge to leading edge technique. LV diastolic measurements included E and A peak velocities (m/s) and their ratio as well as E-wave deceleration time (ms). calculator - aorticcalculator calculator Aorticcalculator .predicting the normal values of ascending aorta morphology. eCollection 2022 Feb. Korean Circ J. In international guidelines, risk estimation for thoracic ascending aortic aneurysm (TAAA) is based on aortic diameter. Cut-off values for severe stenosis are <1.0 cm 2 for AVA and <0.6 cm 2 /m 2 for AVA index. Aortic dimensions were expressed as mean, median, and twenty-fifth and seventy-fifth percentiles; the aortic dimension above the ninety-fifth percentile of the overall distribution was used as cutoff for the upper limit. Recent years have seen the publication of large, international, prospectively recruited studies from which the British Society of Echocardiography has now derived updated, robust reference intervals for use in echocardiographic practice within the UK. Measurements should be performed in apical views (four- and two-chamber view) during end-systole. Epub 2014 May 20. Tribouilloy C, Bohbot Y, Marchaux S, Debry N, Delpierre Q, Peltier M, Diouf M, Slama M, Messika-Zeitoun D, Rusinaru D. Circ Cardiovasc Imaging. Growth rate estimates, yearly complication rates, and survival were assessed. Sex differences in aortic root dimensions in adults : Absolute values (cm) indexed values (cm/m2) aortic root: Source: www.researchgate.net. Exponents b and c (respectively for weight and height) were found to be significantly different than unity for all 4 AR diameters and gender exponent ( Table5 ). 2. Both non-indexed and indexed aortic root diameters increased significantly with increasing age in males and females (Supplement Table 5). Aortic Size Assessment by Noncontrast Cardiac Computed Tomography: Normal Limits by Age, Gender, and Body Surface Area. :! tZf|}68meG.Hio)0*6&x. The standard size of the aortic root is between 29 and 45 millimeters. Gender differences are then accounted for by indexing the volume to body surface area (BSA) via the Mosteller equation.