ABSTRACT
The findings in different imaging techniques in the staging of lymphoma are discussed in this report with special reference to the role of the US, CT and MR. The authors evaluated sites of involvement in several organs and finally the role of the imaging techniques in the follow-up.
Subject(s)
Lymphoma/pathology , Humans , Lymphatic Metastasis , Lymphoma, AIDS-Related/pathology , Neoplasm Staging/methodsABSTRACT
In this paper the authors reviewed the diagnostic applications of magnetic resonance imaging in the study of cardiovascular disease. This technique shows to be promising for the future; nevertheless echocardiography and nuclear medicine are yet the techniques of first choice in the evaluation of cardiovascular diseases.
Subject(s)
Heart Diseases/diagnosis , Magnetic Resonance Imaging , Echocardiography , Humans , Magnetic Resonance Imaging/methods , Magnetic Resonance Imaging, Cine , Myocardium/pathologyABSTRACT
In this manuscript we evaluate the role of HR CT in polmonary parenchymal disease.
Subject(s)
Lung Diseases/diagnostic imaging , Lung Neoplasms/diagnostic imaging , Tomography, X-Ray Computed/methods , Animals , Diagnosis, Differential , Humans , Lung Diseases/pathology , Lung Neoplasms/pathology , Male , Rabbits , Radiography, Dual-Energy Scanned ProjectionABSTRACT
We discuss in this report the results and limits of MR imaging in the evaluation of non focal hepatic pathology. At present, MR imaging seems to be one of the most important diagnostic steps, in the study of widespread hepatic diseases.
Subject(s)
Hepatitis, Viral, Human/diagnosis , Liver Cirrhosis/diagnosis , Liver Diseases/diagnosis , Magnetic Resonance Imaging , Female , Hepatitis, Viral, Human/pathology , Humans , Hypertension, Portal/diagnosis , Liver Cirrhosis/pathology , Liver Regeneration , Male , Portal Vein , Thrombosis/diagnosisABSTRACT
Eleven patients presenting signs and symptoms related to flogistic disease of the right inferior abdominal region were studied with Computed Tomography. Four out of the eleven patients also underwent Magnetic Resonance examination. In 9 patients final diagnosis was correctly reached after surgery and in 1 case diagnosis was made on the basis of endoscopic findings and delayed echographic controls. Among the eleven patient a correct diagnosis was possible on the basis of CT findings in seven of the examined patients; 4 of them were correctly diagnosed as appendicitis; 1 case was diagnosed as Crohn disease; 1 case was a mucocele and 1 case was diagnosed as tubo-ovaric abscess. In 1 case no one diagnostic hypothesis was possible on the basis of CT and MR findings; on surgery the diagnosis was of appendicitis. In 2 cases of surgery proven tubo-ovaric abscesses a diagnosis of appendicitis was done on the basis of CT examination. In one case CT and MR findings were considered to be related to an ovaric tumor; on surgery the correct diagnosis was of post-surgical fibrosis. In 4 cases MR findings confirmed the diagnostic hypothesis reached with CT examination but only in two of them the final diagnosis was correct. In this paper we describe all the CT and MR findings found in each patient.
Subject(s)
Abdominal Pain/diagnosis , Appendicitis/diagnosis , Crohn Disease/diagnosis , Tomography, X-Ray Computed , Abdominal Abscess/diagnosis , Abdominal Abscess/surgery , Acute Disease , Adult , Aged , Aged, 80 and over , Appendicitis/therapy , Crohn Disease/surgery , Diagnosis, Differential , Female , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Mucocele/diagnosis , Mucocele/surgery , Ovarian Diseases/diagnosis , Ovarian Diseases/surgeryABSTRACT
In this paper we discussed the usefulness of CT and MR imaging in the study of tumors of nasopharynx, paraphararyngeal space and masticatory space. We also stressed the role of the techniques in the characterization and in assessing the extension of these diseases.
Subject(s)
Jaw Neoplasms/diagnosis , Magnetic Resonance Imaging , Mouth Neoplasms/diagnosis , Pharyngeal Neoplasms/diagnosis , Tomography, X-Ray Computed , Carcinoma, Squamous Cell/diagnosis , Carotid Artery Diseases/diagnosis , Female , Humans , Magnetic Resonance Angiography , Male , Nasopharynx/diagnostic imaging , Salivary Gland Neoplasms/diagnosisABSTRACT
We discuss the usefulness of MR examination in the diagnosis of pancreatic diseases, in addition to the other available imaging techniques. MR imaging yields important information in diagnosis and staging of pancreatic tumours, and in the characterization of pancreatic masses. MRI is also valuable for the study of chronic as well as acute pancreatitis, although there are some limits such as the poor detection of calcifications in the chronic, and the excessively long time required to complete the examination in the acute form.
Subject(s)
Magnetic Resonance Imaging , Pancreatic Diseases/diagnosis , Adenocarcinoma/diagnosis , Adenoma/diagnosis , Adenoma, Islet Cell/diagnosis , Diagnosis, Differential , Evaluation Studies as Topic , Humans , Pancreatic Diseases/diagnostic imaging , Pancreatic Neoplasms/diagnosis , Pancreatic Pseudocyst/diagnosis , Pancreatitis/diagnosis , Radiography , UltrasonographyABSTRACT
All MR findings in the study of mediastinal masses are discussed in this report, with the aim of evaluating the reliability of MR imaging in this pathology. The results obtained in the assessment of the extension of these masses are very useful and MR imaging appears to be the most informative of all techniques. Masses originating from the thymus, cystic lesions, substernal goitre, and esophageal tumors were considered. MRI results were compared to those obtained by CT scan which is considered of proven reliability for the evaluation of mediastinal masses.
Subject(s)
Magnetic Resonance Imaging , Mediastinal Diseases/diagnosis , Diagnosis, Differential , Esophageal Neoplasms/diagnosis , Evaluation Studies as Topic , Goiter, Substernal/diagnosis , Humans , Mediastinal Cyst/diagnosis , Mediastinal Diseases/diagnostic imaging , Mediastinal Neoplasms/diagnosis , Thymoma/diagnosis , Thymus Neoplasms/diagnosis , Tomography, X-Ray ComputedABSTRACT
We describe the CT scan and MR appearance of neoplastic lesions affecting the roof of the third ventricle. The neoplastic lesions of this region may be of neuroepithelial origin (sub-ependymoma, colloid cyst), meningeal cell origin (meningiomas), metastatic or primary localization of lymphoproliferative tumors (lymphomas) and dysembryogenetic origin (epidermoid tumor). CT scan and MR imaging are useful techniques for diagnosis and planning of surgical or medical treatment. The primary role of these imaging techniques, is discussed in the quantification of extension, biologic malignancy and anatomical relationships between pathologic lesion and normal nervous tissue.
Subject(s)
Cerebral Ventricle Neoplasms/diagnosis , Cerebral Ventricle Neoplasms/pathology , Cerebral Ventricle Neoplasms/surgery , Dermoid Cyst/diagnosis , Dermoid Cyst/pathology , Dermoid Cyst/surgery , Ependymoma/diagnosis , Ependymoma/pathology , Ependymoma/surgery , Female , Humans , Magnetic Resonance Imaging , Male , Meningioma/diagnosis , Meningioma/pathology , Meningioma/surgery , Tomography, X-Ray ComputedABSTRACT
Before the introduction of computed imaging techniques like CT scan and MR, the differential diagnosis of lesions affecting the sellar and suprasellar regions was very difficult, more often impossible. These techniques contributed to ameliorate the typing of pathological tissues. Non neoplastic pathological findings of this region are very different and they can variate between phlogistic processes, vascular lesions, hamartomatous formations or congenital malformations. In this work we describe the characteristic changes of morphology and radiologic aspect in the diagnostic study of this region, using CT scan and MR imaging.
Subject(s)
Brain Diseases/diagnostic imaging , Brain Neoplasms/diagnostic imaging , Arachnoid Cysts/diagnosis , Brain Diseases/diagnosis , Brain Neoplasms/diagnosis , Diagnosis, Differential , Female , Hamartoma/diagnosis , Histiocytosis, Langerhans-Cell/diagnosis , Humans , Intracranial Aneurysm/diagnosis , Magnetic Resonance Imaging , Male , Sarcoidosis/diagnosis , Sella Turcica/diagnostic imaging , Tomography, X-Ray ComputedABSTRACT
The above paper was aimed at defining the usefulness of MRI in the study of pathologies involving the penis. Disorders considered include Peyronie's disease, fibrosis of the penis, priapism, trauma, congenital anomalies, and tumors. In Peyronie's disease and in fibrosis of the penis, MRI permits to demonstrate the abnormal thickening of tunica albuginea and erectile tissue; after administration of gadolinium, it becomes possible in some cases to demonstrate plaques of the albuginea that are not palpable. In priapism, MRI is useful both for identifying the cause and for assessing the time elapsed since blood extravasation. In traumatic and congenital pathologies, MRI is essential for the acquisition of all information on anatomy that may be useful for selecting the most suitable surgical therapy. In neoplastic pathology, MRI has proved useful for accurately assessing the extension of lesions involving the basis of the penis.
Subject(s)
Magnetic Resonance Imaging , Penile Diseases/diagnosis , Penile Neoplasms/diagnosis , Diagnosis, Differential , Fibrosis/diagnosis , Humans , Male , Penile Induration/diagnosis , Penis/abnormalities , Priapism/diagnosisSubject(s)
Abdominal Injuries/diagnostic imaging , Tomography, X-Ray Computed , Abdominal Muscles/diagnostic imaging , Abdominal Muscles/injuries , Hematoma/diagnostic imaging , Humans , Kidney/diagnostic imaging , Kidney/injuries , Liver/diagnostic imaging , Liver/injuries , Pancreas/diagnostic imaging , Pancreas/injuries , Retroperitoneal Space/diagnostic imaging , Retroperitoneal Space/injuries , Spleen/diagnostic imaging , Spleen/injuriesSubject(s)
Neck , Thyroid Diseases/diagnosis , Algorithms , Angiography , Head and Neck Neoplasms/diagnosis , Humans , Magnetic Resonance Spectroscopy , Neck/diagnostic imaging , Radionuclide Imaging , Thyroid Diseases/diagnostic imaging , Thyroid Neoplasms/diagnosis , Thyroid Neoplasms/diagnostic imaging , UltrasonographySubject(s)
Magnetic Resonance Imaging , Ovarian Neoplasms/diagnosis , Uterine Neoplasms/diagnosis , Adult , Carcinoma/diagnosis , Endometriosis/diagnosis , Female , Humans , Leiomyoma/diagnosis , Lymphoma/diagnosis , Ovarian Cysts/diagnosis , Polycystic Ovary Syndrome/diagnosis , Tomography, X-Ray Computed , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/diagnostic imagingABSTRACT
Twenty-two patients with bladder carcinoma were examined by MR imaging and CT to determine the degree of parietal involvement. The results were then compared with the surgical and histological findings. A classification in CT and MR stages was elaborated in order to supply corresponding models to clinical TNM staging. Three groups were thus formed, corresponding to the evolutive phases of the tumor. The first MR group included T1-T2 forms (accuracy: 75%); the second group included T3a forms (accuracy: 75%), and the third T3b-T4 forms (accuracy: 90%). Overall MR accuracy was 81.81%. The first CT group included T1 forms (acc. 71.42%), the second group T2-T3a forms (acc. 60%), and the third group included T3b-T4 forms (acc. 90%). Overall CT accuracy was 77.27%. MR imaging proved thus more accurate than CT in the staging of bladder tumors, especially thanks to its allowing deep muscular involvement to be assessed.
Subject(s)
Carcinoma, Transitional Cell/diagnosis , Magnetic Resonance Imaging , Tomography, X-Ray Computed , Urinary Bladder Neoplasms/diagnosis , Urinary Bladder/pathology , Biopsy , Carcinoma, Transitional Cell/diagnostic imaging , Carcinoma, Transitional Cell/pathology , Diagnosis, Differential , Fibrosis/pathology , Humans , Urinary Bladder Neoplasms/diagnostic imaging , Urinary Bladder Neoplasms/pathologyABSTRACT
This study was aimed at evaluating MR utility in the diagnosis of schizencephaly in patients with seizures and developmental delay. In 7 patients, 8 months to 15 years old, MR imaging detected the presence of unilateral (5 cases) and bilateral (2 cases) hemisferic clefts. Moreover, MR imaging allowed the presence of such anomalies as dysgenesis of the corpus callosum, and agenesis of the septum pellucidum to be demonstrated, together with areas of polymicrogyria and heterotopic gray matter.