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At least 1,207 records · Page 67Linked to original sources
PubMed1994

Routine preoperative chest roentgenogram and its impact on intraoperative complications.

Routine preoperative chest X-rays and operative complications were studied in the patients at Songklanagarind Hospital from January 1990 to December 1991. Preoperative chest X-rays was performed in 9583 patients (87.5%). Only patients over 15 years old are included in our studies. Patients undergoing Caesarean section, cardiothoracic surgery and emergency patients were excluded. The studied population were 6347. Chest X-rays abnormalities were found in 9.8 percent of the investigated patients (625 from 6347). The percentage of patients with chest X-rays abnormalities increase 4 folds in patients in those with age group greater than 45 years when compared to the other young groups. The prevalence of tuberculosis in our patients was 1.2 per cent (76 over 6347). Age could be one of the important factors associated with the risk of intraoperative respiratory and cardiovascular complications. Chest X-rays abnormalities did not associated with respiratory complication. The risk of intraoperative cardiovascular complications (arrhythmia, hypertension and/or hypotension) increased in group with chest film abnormalities and age over 45 years. Chest X-rays investigation is not necessary for routine preoperative investigations in patients under 45 years except those with previous history of heart and lung diseases or clinical indications.

Adolescent↗
PubMed1996

[Clinical evaluation of fiberoptic bronchoscopy for the diagnosis of solitary pulmonary nodules 2 cm or less in diameter of chest roentgenogram].

The value of fiberoptic bronchoscopy in the diagnosis of solitary pulmonary nodules was studied. The subjects were 59 patients with chest-roentgenographic evidence of a solitary pulmonary nodule 2 cm or less in diameter. Definitive diagnoses were made in 34 patients (57.6%). Primary lung care was diagnosed 21 of 32 patients (65.6%), pulmonary tuberculosis in 7 of 12 (58.3%), metastatic lung cancer in 3 of 5 (60%), old lesions in 3 of 5 (60%), and pulmonary filariasis in 0 of 1 (0%). The diagnostic sensitivity of transbronchial biopsy was superior to that of curettage, and combining the two techniques further improved the diagnostic yield. Bronchial lavage was not effective for diagnosis of lung cancer, but was effective for diagnosis of pulmonary tuberculosis. Diagnostic yield was less for nodules in upper lobes than for those in other lobes, and most malignant tumors that were not diagnosed from the results of fiberoptic bronchoscopy were in upper lobes. We conclude that combining various fiberoptic bronchoscopic procedures can improve the diagnostic yield in patients with small pulmonary nodules. CT-guided needle biopsy and video-assisted thoracoscopic biopsy are two such procedures. Early diagnosis of small pulmonary nodules requires a skilled bronchoscopist who can choose the most appropriate method for biopsy.

Bronchoscopy↗
PubMed1977

Post-voiding roentgenograms in routine intravenous urography.

57 patients were studied to determine the validity of post-voiding films in routine urography. It was discovered that if the post-voiding film was delayed by as much as five minutes after the patient had actually voided, a significant error was introduced. The post-voiding film must therefore be obtained immediately after voiding and even a short delay, which is not uncommon in busy Radiology Ddepartments, may result in a false impression of incomplete voiding.

Female↗
PubMedDate not supplied

Posterior roentgenogram of the foot.

A present there is no reliable way to define the position of the heel in relationship to the tibia during weight bearing. Many surgical and nonsurgical procedures are done to correct a varus or valgus heel without a standard method to define the problem or measure the results. This is a report on a posterior roentgenographic technique which defines the position of the heel with respect to the talus, tibia, and forefoot. This technique allows for measurement of the position of the heel and can be performed in any X-ray facility.

Foot↗
PubMed1999

Determination of the size of a foreign body in the eye using image analysis of its roentgenogram.

The case of a computer-enhanced image analysis of X-ray pictures of a pellet in the orbit of a man who sustained a shotgun injury to his right eyeball is presented. The man was shot accidentally during a pheasant hunt. Two hunters were shooting simultaneously but they were using three different sizes of pellet--3.0, 3.5 and 4.0 mm. One of the pellets hit a third man in the eye. He sustained serious injury with a resultant loss of sight in this eye despite immediate medical treatment. Unfortunately the pellet could not be removed from the orbit, but it was necessary to establish who was responsible for the injury. The problem lay in determining the specification and size of the pellet at that moment. The problem was solved using computer-enhanced video image analysis of the X-ray pictures of the pellets. The image processor LUCIA G (http(/)/www.lim.cz) was used.

Adult↗
PubMed1989

Immediate chest roentgenography following fiberoptic bronchoscopy.

It is a common practice for some clinicians to obtain a chest roentgenogram immediately following FOB in an attempt to detect complications of the procedure, particularly pneumothorax; however, the roentgenogram adds substantially to the cost of FOB. It was our clinical impression that the diagnostic and therapeutic value of immediate chest roentgenography was minimal. Therefore, we reviewed 130 chest roentgenograms taken immediately after bronchoscopy that were obtained over 36 months. One hundred fourteen (88 percent) were unchanged from the most recent roentgenogram before bronchoscopy. Ten (8 percent) showed an increase in alveolar infiltrate due to bronchoalveolar lavage or hemorrhage. Five (4 percent) had changes presumably unrelated to the procedure. Only one patient had a pneumothorax on the roentgenogram taken immediately after bronchoscopy; however, the patient was symptomatic, and the pneumothorax was detected by fluoroscopy prior to the chest roentgenogram. Management of the patient's condition was not altered in a single case based upon findings on the chest roentgenogram. We conclude that the immediately postbronchoscopic chest roentgenogram rarely provides clinically useful information or detects a complication that is not suspected clinically; furthermore, it appears to have minimal impact, if any, on the management of a patient's condition.

Bronchoscopy↗
PubMed1995

[Diagnosis of pneumothorax not improved by additional roentgen pictures of the thorax in the expiration phase].

OBJECTIVE: To evaluate whether an expiratory chest roentgenogram adds anything to the results obtained by a standard inspiratory chest roentgenogram in patients with a pneumothorax. DESIGN: Retrospective analysis and blinded re-evaluation of the radiographs. SETTING: Free University Hospital, Amsterdam. METHOD: Of 59 patients with a proven pneumothorax the chest roentgenograms at the time of the pneumothorax (54 inspiratory and 46 expiratory roentgenograms) were evaluated independently by 4 investigators in random order, as were 28 roentgenograms of the same patients made on different occasions. RESULTS: On all expiratory chest roentgenograms the pneumothorax was seen, of the 54 inspiratory ones two investigators missed one very small apical pneumothorax. All 28 control roentgenograms were scored correctly. No reliable additional information was obtained from the expiratory X-rays with regard to the cause of the pneumothorax. CONCLUSION: Expiratory chest roentgenograms are not indicated as a routine investigation for patients in whom pneumothorax is suspected.

Humans↗
PubMed1988

Lung function in silica-exposed workers. A relationship to disease severity assessed by CT scan.

To investigate the relationship of lung function, airflow limitation, and lung injury in silica-exposed workers, we analyzed the clinical, functional, and radiologic data of 94 long-term workers exposed in the granite industry or in foundries. The subjects were divided into four subsets based on chest roentgenogram and CT scan of the thorax: group 1 consisted of 21 subjects with category 0 chest roentgenogram and category 0 CT scan; group 2, 28 subjects with category E 1 on both chest roentgenogram and CT scan; group 3, 18 subjects with category E 1 on chest roentgenogram but with coalescence or conglomeration or both seen only on CT scan; and group 4, 27 subjects with category E 1 and coalescence or conglomeration or both on roentgenogram and CT scan. The groups did not differ in terms of age, height, cigarette smoking, or years of exposure. Lung volumes were significantly reduced only in group 4 (p less than 0.05). Lung compliance, diffusion capacity, and the rest-exercise P(A-a)O2 gradient were reduced in groups 3 and 4 (p less than 0.05). Expiratory flow rates were significantly reduced in groups 2, 3, and 4, with the lowest values in group 4. The expiratory flow rates in group 3 were significantly lower in group 3 than in group 2. These results support the concept that airflow in silica-exposed workers is significantly reduced when the disease is detectable on simple chest roentgenogram; coalescence or conglomeration or both on chest roentgenogram or CT scan is associated with significant loss of lung volumes, gas exchange function, and increased airflow obstruction.

Humans↗
PubMed1989

[Roentgenological study of the form of pulp cavities on upper central incisors].

The purpose of this study is to estimate the form of pulp cavities of upper central incisors using roentgenograms. Materials were fifty extracted upper central incisors. First, roentgenograms of these materials were taken from labio-lingual and mesio-distal directions. Then ten dentists read and traced the form of pulp cavities as shown by the roentgenograms, after which the percentage of readability was determined. Furthermore, the incisors were then cut in order to trace the actual form of pulp cavities and these tracings were compared with those made by the dentists as based on the roentgenograms. It was shown by this study that the tracings of pulp chamber at the dental cervix based on the roentgenograms taken from the labio-lingual direction and the tracings at the horn of pulp chamber based on the roentgenograms taken from the mesio-distal direction closely approximated the tracings of the cut materials. It was also found that readability of these points was 100% for all ten dentists. Based on these results, the two above mentioned points were designated as the datum points to be used when estimating the form of pulp cavities. Furthermore, the form of pulp cavities of the cut teeth was considered in order to determine the angle of the mesial and distal projection of the horn of pulp chamber against the datum plane of the dental cervix. In the above manner, a possible method of estimating the form of pulp cavities of upper central incisors using two roentgenograms was investigated.

Dental Pulp Cavity↗
PubMed1983

[Current roentgenologic delay in bronchial carcinoma].

The actual delaying of findings in roentgenograms is represented in 1000 cases of resected bronchial carcinoma from 1957 to 1972 and in 800 unresectable patients from 1973 to 1976. The delaying is analysed using the criteria as localization, site, diameter, histology, clinical delaying of symptoms, manner of discovering the tumour, original finding in the roentgenogram, prognosis, and sex-distribution of the tumours. 1. In 40% of the 1000 resected patients a delay of findings in roentgenograms may be pointed out. 2. Lung cancer is the best discovered by x-ray examination. 69% of 1000 resectable patients, suffering from lung cancer, were discovered by the people's x-ray screening (VRRU). Nevertheless 45-50% of these VRRU-cases are showing a delaying of findings in roentgenograms by more than 6 months. Even in patients, discovered by clinical symptoms, a delaying of findings after x-ray examinations was found, 26% of these patients showing abnormal x-ray findings at the time of diagnosis existing but unheeded already for 6 or more than 24 months. 3. In 10-15% of the cases resection could not be done to delaying of findings in roentgenograms. 4. In most cases the focus of peripheral tumours in roentgenograms is delayed (in 50% for 6 to more than 24 months). 5. In 74% of cases in women a roentgenographic delay was found by 6 to more than 24 months. As a matter of fact, only 10% of all patients were women. 6. Among the central tumours with plain densities the squamous cell carcinomata had findings markedly longer before diagnosis than small cell carcinomata. Among the peripheral tumours alveolar cell carcinoma and adenocell carcinoma are the longest delayed, followed by small (oat) cell carcinoma, polymorph cell carcinoma and squamous cell carcinoma. 7. Positive unheeded x-ray screening series under 6 months remained unregarded in our analysis. But even these series might be still improved. As a conclusion is stated: the detection and prognosis of lung cancer might be improved a) by increasing the quality of reading and interpretation of the VRRU, b) by differentiating the x-ray-intervals according to the risk of lung cancer in each person, c) by a constant algorithm in the diagnosis of suspect findings in roentgenograms.

Carcinoma, Bronchogenic↗