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Biomedical subjects

A E Cardinale

Publications and source records attributed to A E Cardinale.

At least 55 records · Page 3Linked to original sources
PubMed1993

[Flowmetric analysis of thyroid diseases: hypothesis on integration with qualitative color-Doppler study].

After premising the value of qualitative color-Doppler analysis in the characterization of the main thyropathies through the identification of 4 main reference patterns, the authors investigate whether the quantitative information obtained by means of spectral analysis can improve the predictive value of color-Doppler US. One-hundred and seventy-six patients were examined and divided into 4 groups according to qualitative color-Doppler patterns, as reported in the literature. For each patient, flowmetry included the peak systolic frequency shift and the diastolic frequency shift. The Doppler shift was seen to differ greatly within each semiology class, with overlap of values between the various qualitative classes and between the different diseases. In conclusion, flowmetry provides no more useful diagnostic information than color-Doppler US in nodular or diffuse thyroid diseases.

Blood Flow Velocity↗
PubMedDate not supplied

[Sportsman hindfoot pain: role of magnetic resonance imaging].

PURPOSE: To assess the outcome of Magnetic Resonance Imaging (MRI) in the diagnosis of sportsman hindfoot pain. MATERIALS AND METHODS: Fortythree professional athletes (31 men, 12 women, age range: 17-37 years) affected by hindfoot pain underwent MRI. Spin echo (SE) T1W, Gradient echo (GE) T2*W, and fat suppression (Short Time Inversion Recovery: STIR) images were acquired with a 0.5 T superconductive unit (Vectra, GE Medical System, Milwaukee, WI, USA). A dedicated extremities transmitter/receiver coil was used. The lesion site, the presence of anatomic variants (os trigonum, Haglund's deformity), and signal intensity changes were evaluated. RESULTS: In all cases MRI allowed the identification of the cause of the hindfoot pain, in relation to soft tissue (bursae, synovial or nervous structures), bone and articular diseases. Particularly, as regards soft tissue diseases, tendinous abnormalities and inflammatory bursal involvement were frequently found (77% of cases). Bone diseases (22% of cases with posterior talalgia alone), mostly involved the heel (60%), whereas cartilagineous diseases were present in 9% of cases. In 60% of cases an intra-articular osseous or cartilagineous displaced fragment coexisted, determinating joint locking during foot flexo-extension movements. In 38% of cases contemporary involvement of different articular structures was observed. DISCUSSION: Both MRI high contrast resolution and multiplanar capabilities allow the complete evaluation of hindfoot region. In our experience sagittal and axial planes were particularly well suited for the diagnosis and the assessment of disease extension. Furthermore, T2W (GET2*) and fat suppression (STIR) images allow high sensitivity even in early disease detection, when hyperemia or fluid collection occur. CONCLUSIONS: According to our results, it seems possible to state that nowadays MRI is the most reliable technique for identifying the causes of hindfoot pain, in order to provide a correct and effective pre-therapeutic planning.

Adolescent↗
PubMedDate not supplied

Pigmented villonodular synovitis of the foot: MR findings.

PURPOSE: To evaluate the MRI findings in the various forms of pigmented villonodular synovitis (PVNS) of the foot. MATERIALS AND METHODS: Seven hundred and fifty-three MR studies of the foot performed at our institute between June 1994 and April 2000 were retrospectively reviewed for the presence of PVNS. Spin echo (SE) T1W, Gradient echo (GE) T2*W, and fat suppression (Short Time Inversion Recovery: STIR) images were acquired with a 0.5 T superconductive unit (Vectra, GE Medical System, Milwaukee, WI, USA) provided with a dedicated transmitter/receiver coil. The site and type of lesions, the signal intensity patterns, and the presence of associated changes were evaluated. RESULTS: On the basis of the MR images and the above parameters, six patients (3 men, 3 women, age range: 35-48 years) with PVNS were selected. Three out of six PVNS were nodular, whereas the remaining three were diffuse. Of the three nodular forms, one was found in the sub-talar joint and the remaining two antero-medially to the talus. Instead, all of the diffuse lesions were located on the metatarsus. Perilesional oedema was seen in all cases, although more obvious in the nodular forms, whereas bone involvement (osteochondral erosion) was observed only in the diffuse metatarsal PVNS. Intra-articular bloody effusion was never observed. The MRI findings were confirmed by surgery in all cases. DISCUSSION: The high contrast resolution and multiplanar capabilities of MRI allow the complete evaluation of the structures of the foot affected by PVNS, and of the extent of soft tissue (bursae, synovial or nervous structures), bone and articular involvement. Although not specific, the presence of haemosiderin results in characteristic MR findings, due to the shortening of both T1 and T2 relaxation times. GET2* images are particularly well suited to this PURPOSE: Furthermore, in our experience, FIR images added better depiction of associated swelling. CONCLUSIONS: According to our results, MRI is now the most reliable technique for identifying and classifying PVNS, and allows correct treatment planning and effective monitoring.

Adult↗
PubMedDate not supplied

[Bucket-handle meniscal tears of the knee. Magnetic resonance findings].

Magnetic Resonance Imaging (MRI) is a valuable technique to study knee meniscal tears. A series of 330 patients with knee traumas was retrospectively reviewed to systematize the semiologic features of a particular kind of meniscal tear, the "bucket-handle" one. MR investigations were performed with an 0.5-T superconductive magnet, surface coil and spin-echo T1-weighted and gradient-echo (FFE) T2*-weighted sequences on the coronal and the sagittal planes. Twenty-nine patients exhibited bucket-handle tears, 25 of the medial and 4 of the lateral meniscus. In all 29 patients joint effusion was observed; in 18 patients capsulo-ligamentous lesions were associated. MR findings were confirmed by arthroscopy and/or surgery. Semiologic features characterizing the bucket-handle tear on the coronal plane are: truncated triangular shape of the peripheral meniscus and low-intensity band between the posterior cruciate ligament and the tibial plateau, corresponding to the central fragment displaced in the intercondylar notch. In the lateral meniscus, the fragment is found beneath the anterior cruciate ligament. On the sagittal plane this band parallels the posterior or anterior cruciate ligaments, depending on the involved meniscus, with a typical "second cruciate posterior or anterior ligament" or "third cruciate ligament" pattern. The semiology of such findings of bucket-handle meniscal tears is useful in the differential diagnosis with other kinds of meniscal tears.

Adolescent↗