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Biomedical subjects

M Vincenzoni

Publications and source records attributed to M Vincenzoni.

At least 37 records · Page 2Linked to original sources
PubMedDate not supplied

Sonography of normal lower ureters.

The sonographic features of normal lower ureters, visualized during routine examination of the pelvis in a series of 40 patients, are described. A comparison with the corresponding excretory urogram was obtained in 18 patients. In the authors' experience, visualization of the ureters is a normal finding that should not suggest stasis or dilatation. Recognition of the ureters, although restricted to the lower segment, can be useful in the evaluation of patients examined for recent or current renal colic in order to assess with greater accuracy the existence of ureteral stones and their position. In addition, knowledge of normal features and of physiological changes could presumably be used in the evaluation of pathological conditions, congenital or acquired, of the ureters.

Adult↗
PubMedDate not supplied

Normal uterus and uterine malformations.

The uterus is well visualized with sonography with the definition of its morphofunctional characteristics and the physiologic variations in relation to hormonal stimuli. With high frequency endovaginal and intrarectal probes, anatomical details are optimal. Color Doppler enables the study of blood flow in the pelvic vessels and supplies functional information. Hysterosalpingography is the most accurate method for the study of the uterine cavity and the evaluation of tubal patency. In the study of uterine malformations, sonography represents the procedure of first choice, able to diagnose anomalies of fusion and development of müllerian ducts. In cases of dubious or ascertained malformations, hysterosalpingography is mandatory to complete the sonographic findings.

Female↗
PubMedDate not supplied

Diagnostic imaging in cervical incompetence.

Cervical incompetence is defined as an abnormal dilatation of the cervical canal at the body-neck junction with no pain or blood loss and in the absence of uterine contractile activity. Cervical incompetence is the frequent cause of abortion in the second trimester and premature delivery, with adverse fetal prognosis. Usually, three causative factors are considered: traumatic, constitutional, dysfunctional. While in multiparous women the medical and remote obstetric history poses the diagnostic suspicion, in primigravidae, in the absence of previous risk factors (traumas, malformations, etc) early diagnosis may allow prompt treatment with a better prognosis. Hysterosalpingographic (tunnel-shaped cervix or appearing as an inverted sac, diameter of internal uterine orifice) but especially sonographic findings (cervical length, dilated endocervical canal, tunnel-shaped internal uterine orifice, herniation of the amniotic sac into the endocervical canal) represent the most significant radiologic signs. The radiologist should be able to recognize the typical imaging of this condition to select the patients who should undergo serial controls in time since the start of the second trimester of pregnancy, or to indicate a suitable treatment based on sonographic signs suggestive for incompetence identified before the clinical exam. This is the present correct approach while waiting for future clinical and technological developments of three-dimensional sonography and MRI which will be able to detect those changes in cervical connective structures responsible for incompetence and still not identified by any imaging procedure.

Adolescent↗
PubMedDate not supplied

Radiologic imaging of the fallopian tubes.

Aim of the present article is to illustrate the radiologic findings which afford the most reliable diagnosis with hysterosalpingography, in the evaluation of tubes in infertile patients. Based on the more regular anatomical patterns with details of minor anatomical variants, a common cause of infertility, the signs of the various types of tubal obstruction, are examined. The nature of the latter is not always organic: the implementation of simple albeit often resolutive technical devices as change of position or the use of more sophisticated but well-tolerated maneuvers as the interventional ones, may help detect normal patterns hidden by false (functional) obstruction. Careful analysis of tubal morphology down to the obstructed portion allows the identification of true pathologic patterns, making this exam even more valid in the diagnostic approach to the infertile patient.

Fallopian Tube Diseases↗