Biomedical subjects

Tomislav Bozek

Publications and source records attributed to Tomislav Bozek.

3 recordsLinked to original sources

PubMed2002

Limb deformities and three-dimensional ultrasound.

AIM: To assess the ability of three-dimensional (3D) ultrasonography for improvement of antenatal detection of limb deformities. METHODS: 347 patients were selected from a routine outpatient clinic or sent for supervision from other units because of suspected anomalies of fetal extremities. 3D ultrasound devices used in the study were Combison 530D and Voluson 530D MT (Kretztechnik, Zipf, Austria) with a 3-5 MHz annular array transducer for three-dimensional volume scanning. RESULTS: In 41 of 347 patients the initial diagnosis was suspected by two-dimensional sonography (gestational age 18-32 weeks). In 28 of 41 suspected cases the diagnosis of abnormalities was determined after examination by 3D sonography: 17/28 clubfoot, 3/28 hand-polydactily, 2/28 upper limb contractures, 1/28 lower limb contractures, 4/28 micromelia within the syndrome of skeletal dysplasia. In 13 of 41 suspected cases, normal anatomy was confirmed using 3D sonography. CONCLUSION: Three-dimensional sonography is the "method of choice" for the detection of an isolated defect of a single limb, developmental or positional deformations and minor defects of hands and feet. Surface-mode reconstruction of the complete limb and transparent-view reconstruction of the entire skeletal structure are effective technical advantages enabling a completely new visual perception of the unborn baby.

Clubfoot↗

PubMed2002

Prenatal diagnosis: what does four-dimensional ultrasound add?

INTRODUCTION: The key benefit of 4D ultrasound lies in providing real-time 3D images of embryonic or fetal movements, previously limited by technological advancement. AIM: To classify types of first trimester embryonic and fetal movements in normal pregnancies as seen by 4D sonography. RESULTS: Three types of movements can be visualized in the first trimester: gross body between seven and eight weeks, limb movements after ten weeks and complex limb movements after 11 weeks of gestation. DISCUSSION: An alteration from the given pattern of motoric development should be considered as an indication for further investigation. CONCLUSION: 4D ultrasound enables visualization of more details of the dynamics of small anatomical structures. Therefore, body and limb movements can be visualized a week earlier than with 2D.

Adult↗

PubMed2002

Three-dimensional sonoembryology.

Three-dimensional (3D) ultrasound plays an important role in obstetrics, predominantly for assessing fetal anatomy. Presenting volume data in a standard anatomic orientation valuably assists both ultrasonographers and pregnant patients to recognize the anatomy more readily. Three-dimensional ultrasound is advantageous in studying normal embryonic and/or fetal development, as well as providing information for families at risk for specific congenital anomalies by confirming normality. This method offers advantages in assessing the embryo in the first trimester due to its ability to obtain multiplanar images through endovaginal volume acquisition. Rotation allows the systematic review of anatomic structures and early detection of fetal anomalies. Three-dimensional ultrasound imaging in vivo compliments pathologic and histologic evaluation of the developing embryo, giving rise to a new term: 3D sonoembryology. Rapid technological development will allow real-time 3D ultrasound to provide improved and expanded patient care on the one side, and increased knowledge of developmental anatomy on the other.

Congenital Abnormalities↗