Femoral head osteonecrosis: Volumetric MRI assessment and outcome

Bassounas, Athanasios; Karantanas, Apostolos H.; Fotiadis, Dimitrios I.; Malizos, Konstantinos N.

doi:10.1016/j.ejrad.2007.03.028

Cited by 33 publications

(20 citation statements)

References 31 publications

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“…[6][7][8][9] Although there were several methods introduced to identify the lesion location and measure the lesion size, all of them were based on MR images and/or X-ray plain films. 8,9,13,14 So far, no study has reported the feasibility and accuracy of using CT to measure the size of ONFH lesions. This study found that similar to MR image, CT can precisely show the size, shape and location of ONFH lesions.…”

Section: Discussionmentioning

confidence: 99%

Osteonecrosis of the femoral head: using CT, MRI and gross specimen to characterize the location, shape and size of the lesion

Hu¹,

Huang²,

Wei³

et al. 2015

BJR

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of the femoral head: using CT, MRI and gross specimen to characterize the location, shape and size of the lesion. Br J Radiol 2015;88:20140508. FULL PAPER Osteonecrosis of the femoral head: using CT, MRI and gross specimen to characterize the location, shape and size of the lesion The results were compared with findings from coronal sectional gross specimens. Two radiologists independently measured the volume of necrotic lesions from CT and MR images using computer software, and the results were averaged. The volume of specimens' necrotic lesion was measured using the water displacement method.Results: There was a high degree of consistency between CT, MRI and the coronal sectional gross specimen on the location, shape and spatial structure of lesions.Differences of the lesion volume measured from CT and MR images were not statistically significant between two radiologists. The necrotic lesion volumes measured from CT and MR images and gross specimens were 22.07 6 5. Osteonecrosis of the femoral head (ONFH) is a common disease of the hip joint. If untreated, 80% of patients with ONFH will suffer the collapse of femoral head articular surface in a few years of disease progression.1 Once the femoral head collapses, osteoarthritis becomes inevitable and function of the hip joint will be seriously affected, which eventually will lead to artificial joint replacement. 2,3Although hip replacement is an effective approach to relieve pain and improve hip function in the short term, its long-term performance remains unsatisfactory.4,5 Furthermore, non-traumatic ONFH typically occurs in young adults and involves both hips. On the other hand, not all ONFH will progress to femoral head collapse.6 Therefore, being able to accurately predict the risk of femoral head collapse according to the disease severity and to take appropriate therapeutic measures are critical to preserve the hip joint and improve the prognosis of ONFH. 7 Studies have shown that the size and location of necrotic lesions are major factors associated with femoral head collapse.6-9 Although various approaches have been reported to illustrate the lesion location and size, all were based on MRI and/or radiographs.6-11 As a main imaging modality for diagnosis of ONFH, CT can clearly display ONFH that is in Association Research Circulation Osseous (ARCO) stage II or above. Multislice CT can achieve isotropic resolution. Volume data acquired from axial scans can be used to reconstruct in any direction to observe lesions. But so far, there has been no study that reports the feasibility and accuracy of using CT to measure the size of ONFH lesions. We hypothesized that CT and MRI could achieve highly consistent results in illustrating the size, shape and location of ONFH lesions in ARCO stage II and above, and both methods can be used to assess the risk of necrotic femoral head collapse.The objectives of this study are (1) to investigate the accuracy of using CT to capture the size, location, shape and spatial structural relationship of the necrotic lesion by com...

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Section: Discussionmentioning

confidence: 99%

Osteonecrosis of the femoral head: using CT, MRI and gross specimen to characterize the location, shape and size of the lesion

Hu¹,

Huang²,

Wei³

et al. 2015

BJR

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“…Its use is primarily limited to advanced disease, orthopedic surgical planning, and longitudinal postoperative monitoring. Even in the presence of extensive MR-proven osteonecrosis, involved joints are often radiographically normal [3,22,41].…”

Section: Radiographymentioning

confidence: 99%

“…MRI is the most sensitive and specific method for detection and monitoring of osteonecrosis [41][42][43]. Minimal MRI comprising coronal unenhanced T1-weighted and STIR sequences exquisitely delineates osteonecrosis lesions ( Figs.…”

Section: Mrimentioning

confidence: 99%

Osteonecrosis in Children After Therapy for Malignancy

Kaste

Karimova

Neel

2011

American Journal of Roentgenology

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OBJECTIVE Osteonecrosis in the growing population of childhood cancer survivors results from disease and treatment. Imagers must be knowledgeable about patient groups at risk for its development, patterns of involvement and potential implications. This review will focus on implications of this potentially life-altering toxicity. CONCLUSION Childhood cancer survivors are at increased risk for developing osteonecrosis. Because osteonecrosis is often asymptomatic until late in the process, imaging is critical for its detection and characterization when interventions may be most effective to ameliorate its progression.

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“…Οστεονέκρωση Μηριαίας Κεφαλής Οι κύριες απεικονιστικές τεχνικές που χρησιμοποιούνται για τη διάγνωση της οστεονέκρωσης είναι η απλή ακτινογραφία, η αξονική τομογραφία, το σπινθηρογράφημα και η μαγνητική τομογραφία (Mont 1995, Resnick 1995, Malizos 2007, Θεοδώρου ΔΙ. Διδακτορική διατριβή Ιωάννινα 1996.…”

Section: απεικόνιση της οστεονέκρωσηςunclassified

“…Resonance Imaging) είναι η πιο ευαίσθητη μέθοδος για τη διάγνωση της Οστεονέκρωση Μηριαίας Κεφαλής οστεονέκρωσης (Malizos 2007, Koo 1999, Sugano 1997, Markisz 1987, Mont 1995 (Sugioka 1982).…”

Section: μαγνητική τομογραφία Mriunclassified

Υπολογιστικός Προεγχειρητικός Σχεδιασμός Του Μυοσκελετικού Συστήματος

Κουμπογιάννης¹

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Femoral head osteonecrosis: Volumetric MRI assessment and outcome

Cited by 33 publications

References 31 publications

Osteonecrosis of the femoral head: using CT, MRI and gross specimen to characterize the location, shape and size of the lesion

Osteonecrosis of the femoral head: using CT, MRI and gross specimen to characterize the location, shape and size of the lesion

Osteonecrosis in Children After Therapy for Malignancy

Υπολογιστικός Προεγχειρητικός Σχεδιασμός Του Μυοσκελετικού Συστήματος

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