Sanja Jovanovic1, Aleksandra Djuric-Stefanovic2,3, Aleksandar Simić4,3, Ognjan Skrobic4,3, Predrag Pesko4,3. 1. Center of Radiology and MR, Unit of Digestive Radiology, Belgrade, Serbia, dr.sanja.jovanovic@gmail.com. 2. Center of Radiology and MR, Unit of Digestive Radiology, Belgrade, Serbia. 3. Faculty of Medicine, Belgrade University, Belgrade, Serbia. 4. Department of Esophageal Surgery, First Surgical University Clinic, Clinical Center of Serbia, Belgrade, Serbia.
Abstract
OBJECTIVE: To evaluate multidetector computed tomography (MDCT) findings in patients with achalasia, to assess its role in differentiating subtypes in detecting lung involvement and extra-esophageal thoracic complications. SUBJECTS AND METHODS: This clinical retrospective study included 51 patients with manometrically confirmed achalasia who underwent chest X-ray and MDCT in diagnostic work-up. Esophageal wall thickness and morphology, luminal dilatation, lung changes, and extra-esophageal manifestations were analyzed on MDCT by 2 readers. Wilcoxon, Kruskal-Wallis and Mann-Whitney test were used for assessing the differences among the achalasia subtypes, and intra-class correlation coefficients (ICC) assessing the inter-observer agreement between the measurements of 2 readers. RESULTS: Fourteen (27.5%) patients had achalasia subtype I, 21 (60.8%) had subtype II while 6 (11.8%) had subtype III. Esophageal wall thickness of the esophageal body (EB) and distal esophageal segment (DES) as well as nodular/lobulated appearance of DES were found significantly more often in subtype III (p = 0.024, p < 0.001, p = 0.009, respectively). Esophageal dilatation gradually decreased from subtype I to III (p = 0.006). Chest X-ray revealed lung changes in 9 (17%) and MDCT in 21 (41%) patients (p = 0.001), most frequently in subtype I, with predominance of ground-glass opacities. Tracheal/carinal compression was detected in 27 (52.9%) and left atrial compression in 17 (33.3%) patients. Excellent inter-observer agreement was observed in measuring the EB and DES wall thickness, and diameter of EB (ICC 0.829, 0.901, and 0.922). CONCLUSION: MDCT is a useful tool for detecting lung and extra-esophageal thoracic complications in patients with achalasia, and could be a valuable additional imaging modality in the differentiation of achalasia subtypes.
OBJECTIVE: To evaluate multidetector computed tomography (MDCT) findings in patients with achalasia, to assess its role in differentiating subtypes in detecting lung involvement and extra-esophageal thoracic complications. SUBJECTS AND METHODS: This clinical retrospective study included 51 patients with manometrically confirmed achalasia who underwent chest X-ray and MDCT in diagnostic work-up. Esophageal wall thickness and morphology, luminal dilatation, lung changes, and extra-esophageal manifestations were analyzed on MDCT by 2 readers. Wilcoxon, Kruskal-Wallis and Mann-Whitney test were used for assessing the differences among the achalasia subtypes, and intra-class correlation coefficients (ICC) assessing the inter-observer agreement between the measurements of 2 readers. RESULTS: Fourteen (27.5%) patients had achalasia subtype I, 21 (60.8%) had subtype II while 6 (11.8%) had subtype III. Esophageal wall thickness of the esophageal body (EB) and distal esophageal segment (DES) as well as nodular/lobulated appearance of DES were found significantly more often in subtype III (p = 0.024, p < 0.001, p = 0.009, respectively). Esophageal dilatation gradually decreased from subtype I to III (p = 0.006). Chest X-ray revealed lung changes in 9 (17%) and MDCT in 21 (41%) patients (p = 0.001), most frequently in subtype I, with predominance of ground-glass opacities. Tracheal/carinal compression was detected in 27 (52.9%) and left atrial compression in 17 (33.3%) patients. Excellent inter-observer agreement was observed in measuring the EB and DES wall thickness, and diameter of EB (ICC 0.829, 0.901, and 0.922). CONCLUSION: MDCT is a useful tool for detecting lung and extra-esophageal thoracic complications in patients with achalasia, and could be a valuable additional imaging modality in the differentiation of achalasia subtypes.
Authors: Renato Salvador; Mario Costantini; Giovanni Zaninotto; Tiziana Morbin; Christian Rizzetto; Lisa Zanatta; Martina Ceolin; Elena Finotti; Loredana Nicoletti; Gianfranco Da Dalt; Francesco Cavallin; Ermanno Ancona Journal: J Gastrointest Surg Date: 2010-09-10 Impact factor: 3.452
Authors: Shahin Ayazi; Jeffrey A Hagen; Joerg Zehetner; Oliver Ross; Calvin Wu; Arzu Oezcelik; Emmanuele Abate; Helen J Sohn; Farzaneh Banki; John C Lipham; Steven R DeMeester; Tom R Demeester Journal: J Gastrointest Surg Date: 2009-09-25 Impact factor: 3.452