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At least 343 records · Page 19Linked to original sources
PubMed1989

The radiology of right heart dysfunction: chest roentgenogram and computed tomography.

Alterations in the right heart silhouette resulting from chamber enlargement, pericardial disease, and juxtacardiac masses can be diagnosed by plain-film radiography. On the other hand, plain films rarely reveal intracardiac masses or right ventricular hypertrophy, and to suggest these disorders it may be necessary to rely on secondary signs such as pulmonary artery enlargement. In contrast, computed tomography will show both right ventricular hypertrophy and intracardiac masses and is therefore an important adjunct in evaluating right heart abnormalities.

Heart Diseases↗
PubMed1985

Alveolar cell carcinoma: diagnostic pitfalls in evaluating the chest roentgenogram.

We have reported two cases of biopsy-proven alveolar cell carcinoma, both initially thought to be pulmonary edema. The purpose of this report is to stress the variations of the roentgenographic pattern in alveolar cell carcinoma and to suggest that fiberoptic bronchoscopy with biopsy should be considered when a pattern thought to be that of pulmonary edema does not resolve with appropriate therapy.

Adenocarcinoma, Bronchiolo-Alveolar↗
PubMed1986

Pneumocystis pneumonia in a patient with normal chest roentgenograms and normal arterial blood gas values.

For unknown reasons, manifestations of even heavy opportunistic infection in AIDS patients may be chronic and subtle. We have presented the second fully reported case of an AIDS patient with symptomatic Pneumocystis carinii pneumonia in whom the usual screening tests of blood gases and chest roentgenography were normal to all observers. Diffusing capacity for carbon monoxide can be an early and sensitive indication of PCP.

Acquired Immunodeficiency Syndrome↗
PubMed1987

Interpretation of chest roentgenograms by primary care physicians.

In a prospective study, radiologists judged chest x-ray interpretations of family practice physicians. Though discrepancies were frequent, they led to no demonstrable clinical consequences. Potentially significant misreadings did occur, and clinically insignificant errors may still be worth noting for academic as well as patient advocacy reasons.

Diagnostic Errors↗
PubMed1988

Prediction of curve progression in idiopathic scoliosis based on initial roentgenograms. A proposal of an equation.

A retrospective study was conducted in 122 patients with idiopathic scoliosis who were followed for more than 2 years. There were 58 patients who showed 5 degrees (Cobb) or more progression, and 41 patients who showed no progression. Only those who did not receive any treatment or who failed to comply with brace treatment were selected, to eliminate the effect of treatment. In the early phase of the study, 12 parameters were put into a multivariate analysis to observe the relative weight of each of them, which led the authors to eliminate the following five parameters: 1) Cobb angle, 2) rotation of the apical vertebra, 3) deviation of the apical vertebra, 4) Risser's expected correction: (standing angle--supine angle) X 3, and 5) maturation index of the iliac apophysis. Through a multiple regression analysis, an equation was obtained to correlate the predictive and the real progression within 10 degrees deviation.

Child↗
PubMed1994

Idiopathic coccygodynia. Lateral roentgenograms in the sitting position and coccygeal discography.

STUDY DESIGN: The authors hypothesized that the source of coccygodynia was a lesion of the coccygeal disc. OBJECTIVES: This study analyzed the motion of the painful coccyx in the sitting position as compared with the lateral decubitus in a patient and a control group and reported the first results of coccygeal discography (dynamic study). SUMMARY OF BACKGROUND DATA: Coccygodynia are usually attributed to soft tissue injuries or psychologic disturbances. No previous study has assessed the coccygeal discs as a source of pain. METHODS: Fifty-one patients with coccygodynia and 51 controls sustained a dynamic study. Coccygeal mobility was documented by superimposing graph paper with a double reading. The accuracy of the measurement was +/- 2.6 degrees intra- and interobserver variations 15.3 and 12.5%. This dynamic study was followed by coccygeal discography in the patient group. RESULTS: An abnormal motion (luxation or hypermobility) of the coccyx that occurred in the sitting position and spontaneously was reducible when placed in the lateral decubitus position was found in 25 patients. Such lesions could be responsible for the pain because no similar findings were seen in the controls and coccygeal discography was positive in these cases. Of the 26 patients with a normal dynamic study, coccygeal discography, using a combination of provocation and anesthetization, was positive in 15 of 21. CONCLUSIONS: Common coccygeal pain could come from the coccygeal disc in approximately 70% of cases.

Coccyx↗
PubMed2003

Documenting fusion following anterior cervical surgery: a comparison of roentgenogram versus two-dimensional computed tomographic findings.

Documentation of fusion following anterior cervical surgery may critically influence management strategies that can adversely affect outcome. Would two-dimensional CT studies more accurately identify fusion following single-level anterior corpectomy with fusion compared with radiographic studies (plain/dynamic) alone? To answer this question, two radiologists, in a "blinded" fashion, separately read both radiographic and two-dimensional CT studies obtained 3 and 6 months following 46 single-level anterior corpectomy with fusion. Single-level anterior corpectomy with fusion used nonreversed iliac crest strut autografts and dynamic ABC plates (Aesculap, Tuttlingen, Germany). Following surgery, patients were immobilized in cervicothoracic orthoses, which were discontinued when fusion was confirmed. Patients were followed an average of 3.2 years (minimum 2 years). Outcomes were measured with the Short Form-36 questionnaire administered preoperatively, and 3, 6, and 12 months postoperatively. Three months after surgery, radiographs documented fusion in 38 (83%) of 46 patients, whereas two-dimensional CTs confirmed fusion in only 23 (50%) of 46 patients. Six months postoperatively, radiographs documented fusion in 44 (96%) of 46 patients, whereas only 32 (70%) of 46 patients were solidly fused on two-dimensional CT studies. Three and 6 months following single-level anterior corpectomy with fusion, two-dimensional CT scans more accurately confirmed fusion compared with radiographs alone.

Adult↗
PubMed2006

Outcome in patients with lung cancer invisible on chest roentgenograms but detected only by helical computed tomography.

The aim of this study was to evaluate the prognosis for patients with lung cancer detected by helical CT but not by CXR. One hundred and thirty-seven asymptomatic patients with lung cancer diagnosed by annual mass screening of the chest were enrolled over a 7-year period. Five-year survival rates in patients with lung cancer detected only by helical CT (n = 19: CT-only detection group) and in patients with lung cancer visible by both CXR and helical CT (n = 118: control group) were evaluated, and clinical variables were examined as possible predictors of survival time using the Cox proportional-hazards model. There was a significant difference between the 5-year survival rates in the CT-only detection group and in the control group (80% vs. 39%, log rank: P = 0.0171). The risk of death decreased 77% in CT-only detectable lung cancer (hazard ratio: 0.219, 95% confidence interval: 0.057-0.845, P = 0.0275). Lung cancer could not be seen by CXR because nodules were small or faint (n = 11) or overlapping a shadow of thoracic components (n = 8). The percentage of subsolid nodules (classified as either part-solid or non-solid nodules) was higher in the subgroup with small or faint nodules (82% vs. 25%, P = 0.0423). Helical CT has the ability to detect early lung cancer before the small or faint nodules increase to a size visible on CXR, and patients with lung cancer detected only by helical CT have a better prognosis.

Adult↗