Hungarian Radiology

[The value of multislice computed tomography in the diagnosis of pulmonary embolism and in differential diagnostics]

BODROGI Nándor, BARANYAI Tibor

OCTOBER 20, 2006

Hungarian Radiology - 2006;80(05-06)

[INTRODUCTION - The multislice CT (MSCT) pulmonary angiography has been used increasingly in the diagnosis of pulmonary embolism with worldwide application and nowadays it can be considered as a gold standard technique. At the author's department a single slice CT has been used from 1993 and a 10 slice CT system with 24 detector-lines was installed in 2004. The authors summarize the advantages of MSCT in the diagnosis and differential diagnosis of pulmonary embolism and its role in the follow-up of cases and the significant increase of the diagnostic safety. PATIENTS AND METHODS - 2576 chest MSCT examinations were performed between 16 February 2004 and 20 June 2005. In 261 cases pulmonary MSCT angiography was made due to suspected pulmonary embolism. In 7 cases the indication of the CT was different, but due to the findings (pulmonary embolism) this group of patients is discussed in this paper. 268 cases were evaluated retrospectively. In 12 patients, CT could not be performed due to contrast agent allergy or because of seriously impaired renal function. In 2 cases it was not possible to establish a venous access. The therapeutical result was monitored upon the request of the clinicians. The pulmonary MSCT angiography was performed in accordance with a detailed acquisition and reconstruction protocol. In the reprocessing stage the 2D (MPR) reconstruction in different directions was an important step. In addition, three-dimensional MIP was used and VRT reconstruction was also made, if needed. Bolus tracking was applied in order to achieve a good contrast phase. RESULTS - In 116 out of 268 cases pulmonary embolism was detected by pulmonary MSCT angiography. In 7 patients pulmonary embolism was not the primary diagnosis. Pathological changes could not be detected in 55 cases (20.5%) and embolism was not proven later in these patients. No false negative study was recognized. In one case, after the death of the patient the autopsy failed to prove the presence of pulmonary embolism, this represents one false positive diagnosis. In 97 patients pulmonary embolism was not detected, however other findings were found relating to the complains of the patients and thus proper therapy could be introduced. CONCLUSION - Pulmonary MSCT angiography proved to be a highly accurate method for the diagnosis and for exclusion of pulmonary embolism and also in the evaluation of its extent. MSCT can be used in monitoring the result of the therapy. In addition, MSCT gives an opportunity to detect other acute pathological conditions of the chest, thus value of the study is significant in the differential diagnosis.]

COMMENTS

0 comments

Further articles in this publication

Hungarian Radiology

[CALENDAR OF RADIOLOGICAL EVENTS 2006]

Hungarian Radiology

[23RD CONGRESS OF THE SOCIETY OF HUNGARIAN RADIOLOGISTS, ABSTRACTS]

Hungarian Radiology

[World congress of pediatric radiology - Montreal]

KIS Éva

Hungarian Radiology

[Virtual reality in medicine]

SZÁNTÓ Dezső

Hungarian Radiology

[Successful radiological diagnostics in Bouveret’s syndrome]

KISS Katalin, FARKAS Szabolcs, LUKOVICH Péter, MAGYAR Péter, MESTER Ádám, MAKÓ Ernő†

[INTRODUCTION - Bouveret’s syndrome I is a rare clinical entity, a special form of gallstone ileus. Based on a case study the authors describe the clinical presentation, the complications and diagnostic work up of the Bouveret’s syndrome I. CASE REPORT - A 75-year-old female patient with repeated vomiting and haematemesis was examined. Known gallstones and obstructive jaundice was noted in the case history. Urgent gastroscopy was performed at admission, which proved haemorrhagic esophagitis as the cause of the haematemesis. A gallstone was found by endoscopy distal to the pyloric region obstructing the bowel lumen. Radiological examinations proved the presence of the stone exactly at the localization that was given. Surgery confirmed the diagnosis. CONCLUSION - Bouveret’s syndrome I should be considered in patients with repeated and long lasting vomiting and bile stone in the case history. Conventional X-ray may be sufficient to establish the diagnosis, however further imaging studies are needed to clarify exact anatomical situation and potential complications of the disease.]

All articles in the issue

Related contents

Hungarian Radiology

[Comparison of the results of lung helical CT and lung scintigraphy in pulmonary embolism]

WENINGER Csaba, BODROGI Gabriella, BOROS Szilvia, SCHMIDT Erzsébet, UDVAROS Eszter, ZÁMBÓ Katalin

[INTRODUCTION - The frequency of the pulmonary embolism is high and the underdiagnosis or delayed recognition of the disease occurs. Recently the helical CT is used to detect pulmonary embolism. The authors compare the results of single-slice spiral thoracic CT and lung scan. PATIENTS AND METHODS - During one year period chest CT examination was performed in 49 patients due to the suspicion of pulmonary embolism, in 30 of them lung scan was also performed. RESULTS - The results of the two diagnostic methods were the same in 21 cases out 30 (in 13/21 cases both methods demonstrated embolism and 8/21 cases the findings were normal). In the remaining nine cases the findings were different. CONCLUSIONS - The lung CT examination is a rapid, non-invasive method to depict the central pulmonary embolism and small infarcts in non fresh cases. The negative result of perfusion lung scan can exclude the pulmonary embolism. If the lung scan demonstrates perfusion defect(s), it is necessary to perform another diagnostic tests (e.g. chest X-ray, ventillation scan). While the lung scan is a cheap, simple method with low radiation dose, it can play important role in the screening.]

Lege Artis Medicinae

[Intimal sarcoma of the pulmonary artery]

NAGY Pál, TOMCSÁNYI István, MAGYAR Éva

[INTRODUCTION - Malignant tumours arising from the wall of the pulmonary artery or the aorta are very rare. Two types are known, leiomyosarcoma and intimal sarcoma. Intimal sarcoma is usually associated with a thrombus that may close the lumen, which complication being important in case of pulmonary artery tumours. Such tumours can be diagnosed by magnetic resonance imaging (MRI). CASE REPORT - A 42-year-old woman was hospitalized with an anamnesis of three months of subfebrility/fever, dyspnea and hemoptysis. Right-sided pulmonary thromboembolism and exudative pleuritis were diagnosed. MRI findings suggested a tumour of the right pulmonary trunk. She underwent surgery with extracorporeal circulation; and a compact mass with a connected thrombus filling the right pulmonary trunk and its hilar branches were removed by thromboendarterectomy. Histology revealed intimal sarcoma of the pulmonary artery. The patient died of this tumour’s progression four years later. CONCLUSION - In case of pulmonary thromboembolism the possibility of intimal sarcoma has to be considered. Vascular tumours can be proven or excluded by MRI.]

Hypertension and nephrology

[About the care of patients with hyperuricaemia and gout]

[This consensus document is intended to provide guidance for the effective and efficient treatment of asymptomatic individuals with high uric acid levels and gout patients.]