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Turetschek",     "affiliation":[      {       "dataInfo":null,       "value":"University of Vienna"      }     ],     "pid":[      {       "qualifier":{        "classid":"URL",        "schemeid":"dnet:pid_types",        "schemename":"dnet:pid_types",        "classname":"URL" },       "dataInfo":null,       "value":"https://academic.microsoft.com/#/detail/321765676"      }     ],     "surname":null,     "name":null    }   ],   "resulttype":{    "classid":"publication",    "schemeid":"dnet:result_typologies",    "schemename":"dnet:result_typologies",    "classname":"publication" },   "title":[    {     "qualifier":{      "classid":"main title",      "schemeid":"dnet:dataCite_title",      "schemename":"dnet:dataCite_title",      "classname":"main title" },     "dataInfo":null,     "value":"early pulmonary involvement in ankylosing spondylitis assessment with thin section ct"    },    {     "qualifier":{      "classid":"alternative title",      "schemeid":"dnet:dataCite_title",      "schemename":"dnet:dataCite_title",      "classname":"alternative title" },     "dataInfo":null,     "value":"Early pulmonary involvement in ankylosing spondylitis: assessment with thin-section CT."    }   ],   "relevantdate":null,   "dateofacceptance":{    "dataInfo":null,    "value":"2000-08-01"   },   "publisher":{    "dataInfo":null,    "value":"Elsevier"   },   "embargoenddate":null,   "fulltext":null,   "contributor":null,   "resourcetype":null,   "coverage":null,   "bestaccessright":null,   "externalReference":null,   "format":null,   "description":[    {     "dataInfo":null,     "value":"Abstract AIM: To determine the frequency and the distribution of early pulmonary lesions in patients with ankylosing spondylitis (AS) and a normal chest X-ray on thin-section CT and to correlate the CT findings with the results of pulmonary function tests and clinical data.  MATERIALS AND METHODS: Twenty-five patients with clinically proven AS and no history of smoking underwent clinical examinations, pulmonary function tests (PFT), chest radiography, and thin-section CT. Four of 25 patients (16%), who had obvious signs on plain films suggestive of pre-existing disorders unrelated to AS were excluded.  RESULTS: Fifteen of 21 patients (71%) had abnormalities on thin-section CT. The most frequent abnormalities were thickening of the interlobular septa in seven of 21 patients (33%), mild bronchial wall thickening in (6/21, 29%), pleural thickening and pleuropulmonary irregularities (both 29%) and linear septal thickening (6/21, 29%). In six patients there were no signs of pleuropulmonary involvement. Eight of 15 patients (53%) with abnormal and four of six patients (67%) with normal CT findings revealed mild restrictive lung function impairment.  CONCLUSION: Patients with AS but a normal chest radiograph frequently have abnormalities on thin-section CT. As these abnormalities are usually subtle and their extent does not correlate with functional and clinical data, the overall routine impact of thin-section CT in the diagnosis of AS is limited. 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