Using 320-detector row computed tomography angiography to investigate the arterial anatomy of the toe flaps on living humans

Nguyen, Viet Tan; Lam, Khanh; Le, Van Doan

doi:10.1007/s00276-021-02793-8

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…Therefore, statistical analyses may be difficult to perform. In 2021, Nguyen et al 29 reported the use of vasodilators to visualize vessels with a diameter of 0.3 mm. However, vasodilators may cause inaccuracies in measuring the vessel diameter.…”

Section: Discussionmentioning

confidence: 99%

The Arterial System of the Fasciocutaneous Deltoid Flap Pedicle on 320-Detector Row Computed Tomography and Clinical Application in the Foot and Hand

Ngoc-Huyen,

The-Hoang,

Lam

et al. 2024

J Reconstr Microsurg

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Background Fasciocutaneous free deltoid flaps are used to reconstruct hand, foot, and maxillofacial defects. Although anatomical studies of this flap pedicle have been performed on cadavers, there are no reports on the use of 320-detector row computed tomography angiography (CTA-320) to investigate the deltoid flap pedicle in living humans. This study aimed to investigate the arterial characteristics of the deltoid flap pedicle using the CTA-320 system in living humans. Methods Twenty-seven adult Vietnamese patients with 54 healthy deltoid regions underwent CTA-320 to investigate arterial blood supply before clinical free-flap transfer. Two- and three-dimensional reconstruction images of the arterial pedicle were visualized, and clinical reconstruction results were evaluated. Results The cutaneous vessel branches of the deltoid flap were separated from the posterior circumflex humeral artery (PCHA) and originated from the axillary (77.78%), subscapular (12.96%), and brachial (9.26%) arteries. The PCHA penetrated the quadrangular space in 90.74% of patients. The cutaneous arterial branch was present in the deltoid-triceps groove in 100% of patients. The average diameter and length of the PCHA were 3.38 ± 0.58 and 43.08 ± 6.60 mm, respectively. The average diameter and length of the flap cutaneous branch were 1.49 ± 0.28 and 44.57 ± 4.83 mm, respectively. The findings of CTA-320 were aligned with the intraoperative clinical findings well. All deltoid flaps were successfully free-transferred with good outcomes. Conclusion The CTA-320 is a practical and effective method for investigating deltoid flap pedicles. It enables accurate flap design and harvesting of flaps, thereby enhancing the clinical success of free-flap transfer.

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Section: Discussionmentioning

confidence: 99%

The Arterial System of the Fasciocutaneous Deltoid Flap Pedicle on 320-Detector Row Computed Tomography and Clinical Application in the Foot and Hand

Ngoc-Huyen,

The-Hoang,

Lam

et al. 2024

J Reconstr Microsurg

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“…The 320-slice computed tomography (CT 320) is a relatively modern scanner with a high spatial resolution (< 0.5 mm), fast imaging speed (0.35 s for one rotation of the gantry), a large eld of view (16 cm in the z-axis), and thin slice thickness (0.5 mm) allowing a minimally invasive investigation of the small vessels (such as leg perforator arteries and those within the hand, nger, foot, and toe) or moving vessels (i.e., coronary arteries) [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Using 320-Slice Computed Tomography to Preoperatively Investigate

Huu¹,

Lam²,

Van³

et al. 2023

Preprint

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Purpose To investigate the leg perforator arterial system, identify the perforator flap’s pedicle artery and its projected cutaneous point using a 320-slice computed tomography (CT 320) scanner. Methods A total of 24 patients with leg soft-tissue defects unilaterally underwent 320-slice CT angiography scanning (CTA 320) with 47 legs. The used method enabled investigation of the perforator arteries originating from the tibial, peroneal arteries, perforator flap’s pedicle artery and its projected cutaneous point. These data were used to preoperatively design an improved flap. Then, the CT-confirmed location and length of the flap’s pedicle artery were compared with intraoperative findings. Results Findings of the CTA 320 on 47 legs showed that 217 perforator arteries with diameters of ≥ 0.5 mm were detected; the average number of arteries per leg, their average length and diameter were 4.6 ± 2.1, 30.7 ± 10.4 mm and 1.16 ± 0.27 mm, respectively. The perforator arteries originating from the anterior tibial artery were mainly distributed in the proximal and middle thirds of the leg. Perforators from the posterior tibial and peroneal arteries were distributed abundantly in the middle and distal thirds of the leg. As identified in the CT, the location and length of the flap’s pedicle artery and its projected cutaneous point were consistent with those observed during the surgery. Conclusions The CTA 320 is a minimally invasive imaging method that provides high-quality images of the leg perforator arterial system and can identify the exact location and projected cutaneous point of the perforator flap’s pedicle artery.

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Using 320-slice computed tomography to preoperatively investigate the leg perforator arterial system and design a perforator flap for patients with a soft-tissue defect in the leg

Khanh,

Doan,

Trung

et al. 2024

Annales de Chirurgie Plastique Esthétique

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Using 320-detector row computed tomography angiography to investigate the arterial anatomy of the toe flaps on living humans

Cited by 4 publications

References 22 publications

The Arterial System of the Fasciocutaneous Deltoid Flap Pedicle on 320-Detector Row Computed Tomography and Clinical Application in the Foot and Hand

The Arterial System of the Fasciocutaneous Deltoid Flap Pedicle on 320-Detector Row Computed Tomography and Clinical Application in the Foot and Hand

Using 320-Slice Computed Tomography to Preoperatively Investigate

Using 320-slice computed tomography to preoperatively investigate the leg perforator arterial system and design a perforator flap for patients with a soft-tissue defect in the leg

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